5.3

CVE-2026-16768: gdk-pixbuf Out-of-bounds Read

CVSS: 5.3v3.1MediumAwaiting analysis
AliasesUBUNTU-CVE-2026-16768DEBIAN-CVE-2026-16768
Published 23-07-2026Last modified 31-07-2026
Open JSON

Vulnerability summary

CVE-2026-16768 is a medium (CVSS 5.3) Out-of-bounds Read vulnerability in gdk-pixbuf. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 13.7% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2
MGASA-2026-0417MGASA-2026-0503

Timeline

  1. 23-07-2026
    PublishedVulnerability first disclosed.
  2. 31-07-2026
    Last modifiedVulnerability information updated.

Description

A flaw was found in gdk-pixbuf. When parsing a specially crafted ICO file with pixel values that exceed the defined palette range, an out-of-bounds read can occur due to improper bounds checking against the actual palette size. This vulnerability causes heap bytes to be interpreted as valid palette indices and rendered as RGB pixel values in the output image, allowing an attacker to extract heap content via the generated output, such as a thumbnail.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • gdk-pixbufAll versions (No fix recorded)
Ubuntu1 product
  • gdk-pixbufAll versions (No fix recorded)

2 vendors · 2 products

References

6 links