CVE-2026-26740

HIGH 8.2

CVSS Score

8.2

EPSS Score

0.0%

EPSS Percentile

0th

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size.

Vendor	n/a
Product	n/a
Published	Mar 18, 2026
Last Updated	Mar 18, 2026

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Affected Versions

n/a / n/a

n/a

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/zakkanijia/POC/blob/main/giflib/giftool/giflib_giftool_gce_len_heap_oobwrite_disclosure.md