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DEBIAN-CVE-2026-5121

DEBIAN-CVE-2026-5121 PUBLISHED CVSS 7.5 HIGH

A flaw was found in libarchive. On 32-bit systems, an integer overflow vulnerability exists in the zisofs block pointer allocation logic. A remote attacker can exploit this by providing a specially crafted ISO9660 image, which can lead to a heap buffer overflow. This could potentially allow for arbitrary code execution on the affected system.

Risk Scores

CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Products

VendorProductVersions
Debian:11libarchive3.8.6-1, 3.4.3-2, 3.4.3-2+deb11u1
Debian:14libarchive3.8.4-1, 0, 3.7.4-4
Debian:12libarchive3.7.4-1, 0, 3.6.2-1
Debian:13libarchive3.7.4-4, 0, 3.7.4-4

Timeline

  • Mar 30, 2026 CVE Published
  • May 16, 2026 CVE Updated
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