What is CVE-2025-26781?

CVE-2025-26781 is a high-severity vulnerability in Samsung Exynos 1080, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2025-10-20.

How severe is CVE-2025-26781?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2025-26781 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Samsung Exynos 1080

CVE-2025-26781

An issue was discovered in L2 in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 9110, W920, W930, Modem 5123, and Modem 5300. Incorrect handling of RLC AM PDUs leads to a Denial of Service.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2025-10-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.006 (46.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

SysSec-KAIST/LLFuzz

References

semiconductor.samsung.com/support/quality-support/product-security-updates/ (Vendor Advisory)
semiconductor.samsung.com/support/quality-support/product-security-updates/cve-… (Vendor Advisory)

Frequently asked questions

What is CVE-2025-26781?: CVE-2025-26781 is a high-severity vulnerability in Samsung Exynos 1080, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2025-10-20.
How severe is CVE-2025-26781?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-26781 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.