CVE-2025-27807
Samsung Exynos Modem Out-of-Bounds Write Vulnerability
Description
An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 9110, W920, W930, W1000, Modem 5123, Modem 5300, Modem 5400. The lack of a length check leads to out-of-bounds writes via malformed NAS packets.
INFO
Published Date :
Jan. 5, 2026, 7:15 p.m.
Last Modified :
Jan. 9, 2026, 2:14 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-27807
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update Samsung Exynos 980, 990, 850, 1080 processors.
- Update Samsung Exynos 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 9110 processors.
- Update Samsung Wearable processors W920, W930, W1000.
- Update Samsung Modems 5123, 5300, 5400.
Public PoC/Exploit Available at Github
CVE-2025-27807 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2025-27807.
| URL | Resource |
|---|---|
| https://semiconductor.samsung.com/support/quality-support/product-security-updates/ | Vendor Advisory |
| https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-27807/ | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-27807 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-2025-27807
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).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-27807 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-27807 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.
-
Initial Analysis by [email protected]
Jan. 09, 2026
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_990_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_990:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_980_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_980:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_850_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_850:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_1080_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_1080:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_2100_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_2100:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_1280_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_1280:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_2200_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_2200:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_1330_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_1330:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_1380_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_1380:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_1480_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_1480:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_1580_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_1580:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_2400_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_2400:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_9110_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_9110:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_w930_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_w930:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_w920_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_w920:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:exynos_w1000_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:exynos_w1000:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:modem_5123_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:modem_5123:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:modem_5300_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:modem_5300:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:samsung:modem_5400_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:samsung:modem_5400:-:*:*:*:*:*:*:* Added Reference Type MITRE: https://semiconductor.samsung.com/support/quality-support/product-security-updates/ Types: Vendor Advisory Added Reference Type MITRE: https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-27807/ Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jan. 06, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Added CWE CWE-787 -
New CVE Received by [email protected]
Jan. 05, 2026
Action Type Old Value New Value Added Description An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 9110, W920, W930, W1000, Modem 5123, Modem 5300, Modem 5400. The lack of a length check leads to out-of-bounds writes via malformed NAS packets. Added Reference https://semiconductor.samsung.com/support/quality-support/product-security-updates/ Added Reference https://semiconductor.samsung.com/support/quality-support/product-security-updates/cve-2025-27807/