PoC Index

CVE-2026-26740

HIGH 8.2EPSS 0.6%

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.

CVSS v3.1
7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v3.1
8.2 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
EPSS
0.62% chance of exploitation in the next 30 days, 47th percentile
Published
2026-03-18
Updated
2026-07-23

Proof-of-concept exploits (1)

References

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