What is CVE-2023-26496?

CVE-2023-26496 is a high-severity vulnerability in Samsung Exynos 1080, classified under Out-of-bounds Write. CVSS score: 8.6/10. Published 2023-03-23.

How severe is CVE-2023-26496?

High severity. CVSS v3 base score is 8.6 out of 10.

Buffer overflow in Samsung Exynos 1080

CVE-2023-26496

An issue was discovered in Samsung Baseband Modem Chipset for Exynos Modem 5123, Exynos Modem 5300, Exynos 980, Exynos 1080, and Exynos Auto T5124. Memory corruption can occur due to improper checking of the parameter length while parsing the fmtp attribute in the SDP (Session Description Protocol) module.

Vulnerability class: Buffer Overflow

Published 2023-03-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

EPSS exploit prediction

EPSS: 0.226 (97.6th percentile), scored 2026-09-28.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 97.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.226 · newest: 0.226 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

semiconductor.samsung.com/processor/modem/ (Product)
semiconductor.samsung.com/processor/mobile-processor/ (Product)
semiconductor.samsung.com/support/quality-support/product-security-updates/ (Vendor Advisory)

Frequently asked questions

What is CVE-2023-26496?: CVE-2023-26496 is a high-severity vulnerability in Samsung Exynos 1080, classified under Out-of-bounds Write. CVSS score: 8.6/10. Published 2023-03-23.
How severe is CVE-2023-26496?: High severity. CVSS v3 base score is 8.6 out of 10.