Public proof of concept

CVE-2023-26074

A public proof of concept exists; no exploitation attested.

Published2023-03-13
WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2023-03-1313:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-26074?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-26074?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Samsung exynos 1080 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Samsung exynos 1280 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

Samsung exynos 2200 firmwareversion to verify

Branch	Affected	Fixed in	Source
—	all versions	no fix published	NVD

6 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

semiconductor.samsung.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionpoc2025-03-03
OpenCVESSVC decisionpoc—
CNACVSS 3.17.6read 2026-10-23
NVDCVSS 3.19.8read 2026-10-23
CISA-ADPweakness (CWE)CWE-7872025-03-03
NVDweakness (CWE)CWE-787read 2026-10-23
FIRST EPSSEPSS score1.0 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2023-03-13
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-26074?

Is CVE-2023-26074 actively exploited?

A proof-of-concept exploit exists for CVE-2023-26074, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2023-26074?

CVE-2023-26074 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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