What is CVE-2025-28162?

CVE-2025-28162 is a medium-severity vulnerability in Libpng, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.5/10. Published 2026-01-27.

How severe is CVE-2025-28162?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in Libpng

CVE-2025-28162

Buffer Overflow vulnerability in libpng 1.6.43-1.6.46 allows a local attacker to cause a denial of service via the pngimage with AddressSanitizer (ASan), the program leaks memory in various locations, eventually leading to high memory usage and causing the program to become unresponsive

Vulnerability class: Buffer Overflow

EPSS: 0.001 (3.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Libpng
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

cve@mitre.org (Exploit, Issue Tracking)
cve@mitre.org (Third Party Advisory)

Frequently asked questions

What is CVE-2025-28162?: CVE-2025-28162 is a medium-severity vulnerability in Libpng, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.5/10. Published 2026-01-27.
How severe is CVE-2025-28162?: Medium severity. CVSS v3 base score is 5.5 out of 10.