CVE-2023-26074

An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 850,...

7.6 HighFix available

An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 850, Exynos 980, Exynos 1080, Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, and Exynos Auto T5123.. A heap-based buffer overflow in the 5G MM message codec can occur due to insufficient parameter validation when decoding operator-defined access category definitions.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: High

Exploit likelihood

1.01%Up 1.0 points since Mar 13, 2023

What each source reports

CVE List Score used 7.6

Record: CVE-2023-26074
CVSS 3.1: 7.6 HighCVSS:3.1/AC:L/AV:N/A:H/C:L/I:L/PR:L/S:U/UI:N
Weakness: CWE-787
Updated: 2026-11-02

EUVDEUVD-2023-29948 7.6

Record: EUVD-2023-29948
CVSS 3.1: 7.6 HighCVSS:3.1/AC:L/AV:N/A:H/C:L/I:L/PR:L/S:U/UI:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-29ph-8jj3-f6p6 9.8

An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 850,...

An issue was discovered in Samsung Mobile Chipset and Baseband Modem Chipset for Exynos 850, Exynos 980, Exynos 1080, Exynos 1280, Exynos 2200, Exynos Modem 5123, Exynos Modem 5300, Exynos Auto T5123, and Exynos W920. A heap-based buffer overflow in the 5G MM message codec can occur due to insufficient parameter validation when decoding operator-defined access category definitions.

Record: GHSA-29ph-8jj3-f6p6
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

NVD 7.6

Record: CVE-2023-26074
CVSS 3.1: 7.6 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-787
Updated: 2026-11-02

OSVPUB-A-269656636 No score

In TBD of TBD, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation.

Record: PUB-A-269656636
Updated: 2026-11-05

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`:unknown:` Android	Pixel-family specific:0 up to Pixel-family specific:2023-04-05, plus listed versions Pixel-family specific	Pixel-family specific:2023-04-05

History

History
Recorded	Changed	Sources
Nov 5, 2026	facts	OSV
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-26074 is a high vulnerability (CVSS 7.6) in Samsung Exynos 1080 Firmware, published March 13, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.01%, the 63rd percentile. Fixed in :unknown: Pixel-family specific:2023-04-05.

References

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