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Medium severity6.5NVD Advisory· Published Aug 17, 2021· Updated Jun 17, 2026

CVE-2021-39247

CVE-2021-39247

Description

Zint Barcode Generator before 2.10.0 has a one-byte buffer over-read, related to is_last_single_ascii in code1.c, and rs_encode_uint in reedsol.c.

AI Insight

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

Affected products

3

Zint/Barcode Generator
cpe:2.3:a:zint:barcode_generator:*:*:*:*:*:*:*:*
Range: <2.10.0
Zint Barcode Generator/Zint Barcode Generatorcpe-rescue
Zint/Zintllm-fuzzy
Range: <2.10.0

Patches

Vulnerability mechanics

References

2

sourceforge.net/p/zint/code/ci/9b02cd52214e80f945bff41fc94bc1e17e15810c/nvdPatchThird Party Advisory
sourceforge.net/p/zint/tickets/232/nvdExploitIssue TrackingPatchThird Party Advisory

News mentions

0

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