5.5
MEDIUM
CVSS 3.1
CVE-2026-23365
net: usb: kalmia: validate USB endpoints
Overview
Description
In the Linux kernel, the following vulnerability has been resolved: net: usb: kalmia: validate USB endpoints The kalmia driver should validate that the device it is probing has the proper number and types of USB endpoints it is expecting before it binds to it. If a malicious device were to not have the same urbs the driver will crash later on when it blindly accesses these endpoints.
Details
INFO
Published Date :
March 25, 2026, 11:16 a.m.
Last Modified :
July 14, 2026, 1:18 p.m.
Remotely Exploit :
No
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 | MEDIUM | [email protected] |
Solution
Apply kernel patches to validate USB endpoints in the kalmia driver.
- Update the Linux kernel to a patched version.
- Ensure USB endpoints are validated before binding.
- Test the driver with malicious USB devices.
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-2026-23365.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-23365 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-2026-23365
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-2026-23365 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-23365 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 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Jul. 14, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Siemens', 'product': 'SIMATIC S7-1500 CPU 1518-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.6', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIMATIC S7-1500 CPU 1518-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.5', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIMATIC S7-1500 CPU 1518-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.6', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIMATIC S7-1500 CPU 1518-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.5', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.6', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.5', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.6', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.5', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIPLUS S7-1500 CPU 1518-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.6', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}, {'vendor': 'Siemens', 'product': 'SIPLUS S7-1500 CPU 1518-4 PN/DP MFP', 'versions': [{'status': 'affected', 'version': 'V3.1.5', 'lessThan': '*', 'versionType': 'custom'}], 'defaultStatus': 'unknown'}] Added Reference https://cert-portal.siemens.com/productcert/html/ssa-019113.html Added Reference https://cert-portal.siemens.com/productcert/html/ssa-082556.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 17, 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': 'd40261236e8e278cb1936cb5e934262971692b10', 'lessThan': 'ff675bc5b3e8c356f9d993d65d0bae6ed0dc7459', 'versionType': 'git'}, {'status': 'affected', 'version': 'd40261236e8e278cb1936cb5e934262971692b10', 'lessThan': '185050b47df3d41e49f20ad01beea2e7b9cddaa7', 'versionType': 'git'}, {'status': 'affected', 'version': 'd40261236e8e278cb1936cb5e934262971692b10', 'lessThan': '28a380bfa5bc7f6a9380b85e8eab919ee6ac1701', 'versionType': 'git'}, {'status': 'affected', 'version': 'd40261236e8e278cb1936cb5e934262971692b10', 'lessThan': '12c0243de0aee0ab27cc00932fd5edae65c1e3a2', 'versionType': 'git'}, {'status': 'affected', 'version': 'd40261236e8e278cb1936cb5e934262971692b10', 'lessThan': '51c20ea5f1555a984c041b0dbf56f00d41b9e652', 'versionType': 'git'}, {'status': 'affected', 'version': 'd40261236e8e278cb1936cb5e934262971692b10', 'lessThan': '011684cd18349aa4c52167c8ac37a0524169f48c', 'versionType': 'git'}, {'status': 'affected', 'version': 'd40261236e8e278cb1936cb5e934262971692b10', 'lessThan': '7bfda1a0be4caec3263753d567678451cef73a85', 'versionType': 'git'}, {'status': 'affected', 'version': 'd40261236e8e278cb1936cb5e934262971692b10', 'lessThan': 'c58b6c29a4c9b8125e8ad3bca0637e00b71e2693', 'versionType': 'git'}], 'programFiles': ['drivers/net/usb/kalmia.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '3.0'}, {'status': 'unaffected', 'version': '0', 'lessThan': '3.0', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.253', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.203', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.167', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.130', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.77', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.17', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '6.19.7', 'versionType': 'semver', 'lessThanOrEqual': '6.19.*'}, {'status': 'unaffected', 'version': '7.0', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/usb/kalmia.c'], 'defaultStatus': 'affected'}] -
Initial Analysis by [email protected]
Apr. 24, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:3.0:-:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 6.19.7 *cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.17 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.130 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.12.77 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.203 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.167 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.0.1 up to (excluding) 5.10.253 Added Reference Type kernel.org: https://git.kernel.org/stable/c/011684cd18349aa4c52167c8ac37a0524169f48c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/12c0243de0aee0ab27cc00932fd5edae65c1e3a2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/185050b47df3d41e49f20ad01beea2e7b9cddaa7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/28a380bfa5bc7f6a9380b85e8eab919ee6ac1701 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/51c20ea5f1555a984c041b0dbf56f00d41b9e652 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7bfda1a0be4caec3263753d567678451cef73a85 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c58b6c29a4c9b8125e8ad3bca0637e00b71e2693 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ff675bc5b3e8c356f9d993d65d0bae6ed0dc7459 Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 18, 2026
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/185050b47df3d41e49f20ad01beea2e7b9cddaa7 Added Reference https://git.kernel.org/stable/c/ff675bc5b3e8c356f9d993d65d0bae6ed0dc7459 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 25, 2026
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: net: usb: kalmia: validate USB endpoints The kalmia driver should validate that the device it is probing has the proper number and types of USB endpoints it is expecting before it binds to it. If a malicious device were to not have the same urbs the driver will crash later on when it blindly accesses these endpoints. Added Reference https://git.kernel.org/stable/c/011684cd18349aa4c52167c8ac37a0524169f48c Added Reference https://git.kernel.org/stable/c/12c0243de0aee0ab27cc00932fd5edae65c1e3a2 Added Reference https://git.kernel.org/stable/c/28a380bfa5bc7f6a9380b85e8eab919ee6ac1701 Added Reference https://git.kernel.org/stable/c/51c20ea5f1555a984c041b0dbf56f00d41b9e652 Added Reference https://git.kernel.org/stable/c/7bfda1a0be4caec3263753d567678451cef73a85 Added Reference https://git.kernel.org/stable/c/c58b6c29a4c9b8125e8ad3bca0637e00b71e2693
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.