What is CVE-2026-6694?

CVE-2026-6694 is a medium-severity vulnerability in Red Hat Enterprise Linux 6, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.5/10. Published 2026-08-03.

How severe is CVE-2026-6694?

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

Buffer overflow in Red Hat Enterprise Linux 6

CVE-2026-6694

A flaw was found in GIMP's file-png plugin. A remote attacker can exploit this by crafting a malicious Animated Portable Network Graphics (APNG) image containing an oversized tRNS chunk. This can lead to a stack-based buffer overflow (CWE-…

Vulnerability class: Buffer Overflow

CVSS v3 metric

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

Affected products

Weakness classification (CWE)

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

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2026-6694?: CVE-2026-6694 is a medium-severity vulnerability in Red Hat Enterprise Linux 6, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.5/10. Published 2026-08-03.
How severe is CVE-2026-6694?: Medium severity. CVSS v3 base score is 5.5 out of 10.