Name: CVE-2021-27799: Out-of-bounds Write
Creator: Rapid7
Published: 2021-02-26T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2021-27799, CWE-787, CVSS 7.5, EPSS 0.02365

ean_leading_zeroes in backend/upcean.c in Zint Barcode Generator 2.9.1 has a stack-based buffer overflow that is reachable from the C API through an application that includes the Zint Barcode Generator library code.

CVSS Details

CVSS 3.1 Base Score: 7.5
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Arch Linux	—	Upgrade to the latest version of Arch Linux	Jul 11, 2025	Feb 26, 2021
Debian	—	Upgrade zint	Jul 30, 2024	Feb 26, 2021

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CVSS Details

Covered by Rapid7

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