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High severity8.8NVD Advisory· Published Sep 17, 2021· Updated Apr 24, 2026

CVE-2020-21548

CVE-2020-21548

Description

Libsixel 1.8.3 contains a heap-based buffer overflow in the sixel_encode_highcolor function in tosixel.c.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

2

Saitoha/Libsixel2 versions
cpe:2.3:a:saitoha:libsixel:1.8.3:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:saitoha:libsixel:1.8.3:*:*:*:*:*:*:*
- (no CPE)range: = 1.8.3

Patches

Vulnerability mechanics

References

1

github.com/saitoha/libsixel/issues/116nvdExploitIssue TrackingPatchThird Party Advisory

News mentions

0

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