HIGH

CVE-2020-23922

CVSS v3

7.1

HIGH

EPSS Score

2.2 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

CVE-2020-23922 Red Hat Product Security2 products fixed · 8 known affected
giflib: out-of-bounds read in DumpScreen2RGB() in gif2rgb.c in gif2rgb tool
giflib-devel as a component of Red Hat Enterprise Linux 6 · giflib-utils as a component of Red Hat Enterprise Linux 6 · giflib.src as a component of Red Hat Enterprise Linux 6
RHSA-2026:4128 Red Hat Product Security2 products fixed
Red Hat Security Advisory: Red Hat AI Inference Server Model Optimization Tools 3.2.2 (CUDA)

Full record on NVD

Description

An issue was discovered in giflib through 5.1.4. DumpScreen2RGB in gif2rgb.c has a heap-based buffer over-read.

Technical details

Published: 2021-04-21

Frequently asked questions

What is CVE-2020-23922?

An issue was discovered in giflib through 5.1.4. DumpScreen2RGB in gif2rgb.c has a heap-based buffer over-read.

Is CVE-2020-23922 actively exploited?

Active exploitation of CVE-2020-23922 has not been confirmed. Its EPSS score was 2.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-23922?

CVE-2020-23922 has a CVSS v3 base score of 7.1 (HIGH severity).

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