What is CVE-2025-26780?

CVE-2025-26780 is a high-severity vulnerability in Samsung Exynos 2400, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2025-07-07.

How severe is CVE-2025-26780?

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

Is CVE-2025-26780 known to be exploited?

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

Improper input validation in Samsung Exynos 2400

CVE-2025-26780

An issue was discovered in L2 in Samsung Mobile Processor and Modem Exynos 2400 and Modem 5400. The lack of a length check leads to a Denial of Service via a malformed PDCP packet.

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

Published 2025-07-07 · 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: 0.004 (27.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 27.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

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-2025-26780?: CVE-2025-26780 is a high-severity vulnerability in Samsung Exynos 2400, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2025-07-07.
How severe is CVE-2025-26780?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2025-26780 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.