What is CVE-2025-62818?

CVE-2025-62818 is a critical-severity vulnerability in Samsung Exynos 1080, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2026-04-07.

How severe is CVE-2025-62818?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Samsung Exynos 1080

CVE-2025-62818

An issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, 9110, W920, W930, W1000, Modem 5123, Modem 5300, and Modem 5400. An out-of-bounds write occurs due to a mismatch between the TP-UDHI and UDL values when processing an SMS TP-UD packet.

Vulnerability class: Buffer Overflow

EPSS: 0.005 (37.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (Vendor Advisory)
cve@mitre.org (Vendor Advisory)

Frequently asked questions

What is CVE-2025-62818?: CVE-2025-62818 is a critical-severity vulnerability in Samsung Exynos 1080, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2026-04-07.
How severe is CVE-2025-62818?: Critical severity. CVSS v3 base score is 9.8 out of 10.