9.8
CRITICAL
CVSS 3.1
CVE-2026-53384
serial: 8250_dw: unregister 8250 port if clk_notifier_register() fails
Overview
Description
In the Linux kernel, the following vulnerability has been resolved: serial: 8250_dw: unregister 8250 port if clk_notifier_register() fails dw8250_probe() registers the 8250 port via serial8250_register_8250_port() and then, if the device has a clock, registers a clock notifier. If clk_notifier_register() fails, probe returns the error but leaves the 8250 port registered. The matching serial8250_unregister_port() lives in dw8250_remove(), which is not called when probe fails, so the port slot stays occupied until the device is rebound or the system is rebooted. The devm-allocated driver data is freed while the port still references it (via the saved private_data and serial_in/serial_out callbacks), so any access to that port slot before a rebind is a use-after-free hazard. Unregister the port on the clk_notifier_register() error path.
Details
INFO
Published Date :
July 19, 2026, 12:16 p.m.
Last Modified :
Aug. 17, 2026, 5:17 a.m.
Remotely Exploit :
Yes !
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework
for assessing the severity of vulnerabilities in software and systems.
We collect and displays CVSS scores from various sources for each CVE.
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
Solution
Unregister the 8250 port when clock notifier registration fails to prevent use-after-free.
- Unregister the 8250 port on clk_notifier_register() failure.
- Ensure dw8250_remove() is called on probe failure.
- Apply the latest kernel patches.
References
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-53384.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53384 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-53384
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-53384 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53384 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': 'ccdf4510a3873b14e5e348cdb038717996f09fda', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '511d2b92f8d20de04acafab676150d26fb5c67f4', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '07ffe414a708ae60551401cec5d727ed156b8caf', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '3d205fe80f2181f0109150ad1fa06ee5bc046935', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': 'd72650a4f334581b23a1892b888a4cb1be142f76', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '778b9dda4b24005a27bcd9c35c110bf8d7f259ca', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '10fc708b4de7f86002d2d735a2dbf3b5b7f65692', 'versionType': 'git'}], 'programFiles': ['drivers/tty/serial/8250/8250_dw.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.19'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.19', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.1.177', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.144', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.95', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.38', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.14', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1.2', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/tty/serial/8250/8250_dw.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': 'ccdf4510a3873b14e5e348cdb038717996f09fda', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '511d2b92f8d20de04acafab676150d26fb5c67f4', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '07ffe414a708ae60551401cec5d727ed156b8caf', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '3d205fe80f2181f0109150ad1fa06ee5bc046935', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': 'd72650a4f334581b23a1892b888a4cb1be142f76', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '778b9dda4b24005a27bcd9c35c110bf8d7f259ca', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '10fc708b4de7f86002d2d735a2dbf3b5b7f65692', 'versionType': 'git'}], 'programFiles': ['drivers/tty/serial/8250/8250_dw.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.19'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.19', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.1.177', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.144', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.95', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.38', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.14', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1.2', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/tty/serial/8250/8250_dw.c'], 'defaultStatus': 'affected'}] -
Reanalysis by [email protected]
Aug. 07, 2026
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.144 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.95 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 7.1 up to (excluding) 7.1.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.38 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.9 up to (excluding) 6.1.177 OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.144 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.95 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 7.1 up to (excluding) 7.1.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.38 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.19 up to (excluding) 6.1.177 -
Initial Analysis by [email protected]
Jul. 29, 2026
Action Type Old Value New Value Added CWE CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.144 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.95 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 7.0.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 7.1 up to (excluding) 7.1.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.38 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.9 up to (excluding) 6.1.177 Added Reference Type kernel.org: https://git.kernel.org/stable/c/07ffe414a708ae60551401cec5d727ed156b8caf Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/10fc708b4de7f86002d2d735a2dbf3b5b7f65692 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/3d205fe80f2181f0109150ad1fa06ee5bc046935 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/511d2b92f8d20de04acafab676150d26fb5c67f4 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/778b9dda4b24005a27bcd9c35c110bf8d7f259ca Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ccdf4510a3873b14e5e348cdb038717996f09fda Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/d72650a4f334581b23a1892b888a4cb1be142f76 Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 28, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': 'ccdf4510a3873b14e5e348cdb038717996f09fda', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': '511d2b92f8d20de04acafab676150d26fb5c67f4', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': '07ffe414a708ae60551401cec5d727ed156b8caf', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': '3d205fe80f2181f0109150ad1fa06ee5bc046935', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': 'd72650a4f334581b23a1892b888a4cb1be142f76', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': '778b9dda4b24005a27bcd9c35c110bf8d7f259ca', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': '10fc708b4de7f86002d2d735a2dbf3b5b7f65692', 'versionType': 'git'}], 'programFiles': ['drivers/tty/serial/8250/8250_dw.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.9'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.9', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.1.177', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.144', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.95', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.38', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.14', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1.2', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/tty/serial/8250/8250_dw.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': 'ccdf4510a3873b14e5e348cdb038717996f09fda', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '511d2b92f8d20de04acafab676150d26fb5c67f4', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '07ffe414a708ae60551401cec5d727ed156b8caf', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '3d205fe80f2181f0109150ad1fa06ee5bc046935', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': 'd72650a4f334581b23a1892b888a4cb1be142f76', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '778b9dda4b24005a27bcd9c35c110bf8d7f259ca', 'versionType': 'git'}, {'status': 'affected', 'version': '57f83e5dd6a33c4696699954784f8fee789b1d0c', 'lessThan': '10fc708b4de7f86002d2d735a2dbf3b5b7f65692', 'versionType': 'git'}], 'programFiles': ['drivers/tty/serial/8250/8250_dw.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.19'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.19', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.1.177', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.144', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.95', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.38', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.14', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1.2', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/tty/serial/8250/8250_dw.c'], 'defaultStatus': 'affected'}] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 20, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 19, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': 'ccdf4510a3873b14e5e348cdb038717996f09fda', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': '511d2b92f8d20de04acafab676150d26fb5c67f4', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': '07ffe414a708ae60551401cec5d727ed156b8caf', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': '3d205fe80f2181f0109150ad1fa06ee5bc046935', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': 'd72650a4f334581b23a1892b888a4cb1be142f76', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': '778b9dda4b24005a27bcd9c35c110bf8d7f259ca', 'versionType': 'git'}, {'status': 'affected', 'version': 'cc816969d7b5973d2720d9afd381f06f0eac6885', 'lessThan': '10fc708b4de7f86002d2d735a2dbf3b5b7f65692', 'versionType': 'git'}], 'programFiles': ['drivers/tty/serial/8250/8250_dw.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.9'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.9', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.1.177', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.144', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.95', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.38', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.14', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1.2', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/tty/serial/8250/8250_dw.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: serial: 8250_dw: unregister 8250 port if clk_notifier_register() fails dw8250_probe() registers the 8250 port via serial8250_register_8250_port() and then, if the device has a clock, registers a clock notifier. If clk_notifier_register() fails, probe returns the error but leaves the 8250 port registered. The matching serial8250_unregister_port() lives in dw8250_remove(), which is not called when probe fails, so the port slot stays occupied until the device is rebound or the system is rebooted. The devm-allocated driver data is freed while the port still references it (via the saved private_data and serial_in/serial_out callbacks), so any access to that port slot before a rebind is a use-after-free hazard. Unregister the port on the clk_notifier_register() error path. Added Reference https://git.kernel.org/stable/c/07ffe414a708ae60551401cec5d727ed156b8caf Added Reference https://git.kernel.org/stable/c/10fc708b4de7f86002d2d735a2dbf3b5b7f65692 Added Reference https://git.kernel.org/stable/c/3d205fe80f2181f0109150ad1fa06ee5bc046935 Added Reference https://git.kernel.org/stable/c/511d2b92f8d20de04acafab676150d26fb5c67f4 Added Reference https://git.kernel.org/stable/c/778b9dda4b24005a27bcd9c35c110bf8d7f259ca Added Reference https://git.kernel.org/stable/c/ccdf4510a3873b14e5e348cdb038717996f09fda Added Reference https://git.kernel.org/stable/c/d72650a4f334581b23a1892b888a4cb1be142f76
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.