CVE-2021-45340

6.5 mediumEPSS 0.9%

Medium (6.5) in libsixel libsixel. EPSS 0.9% chance of exploitation in the next 30 days.

In Libsixel prior to and including v1.10.3, a NULL pointer dereference in the stb_image.h component of libsixel allows attackers to cause a denial of service (DOS) via a crafted PICT file.

Severity

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2022-01-25
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

libsixel:libsixel

References

https://github.com/libsixel/libsixel/issues/51
https://github.com/libsixel/libsixel/issues/51

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