CVE-2021-39247

MEDIUM

Zint Barcode Generator < 2.10.0 - Out-of-bounds Read in code1.c and reedsol.c

Title source: llm

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.

Core 2

Core References

Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_misc

Patch, Third Party Advisory x_refsource_misc

CVSS v3 6.5

EPSS 0.0092

EPSS Percentile 56.0%

Attack Vector NETWORK

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

CWE

CWE-125

Status published

Products (1)

zint/barcode_generator < 2.10.0

Published Aug 17, 2021

Tracked Since Feb 18, 2026