CVE-2026-88371CWE-682

CVE-2026-88371

Medium · published September 24, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
1.3
In the wild
Unconfirmed
What it is

ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6() function. When processing specially crafted Code 128 input, decode_e() can return -1 for an invalid edge pattern, and decode6() subsequently left-shifts this negative signed value while constructing the edge signature. The operation invokes undefined behavior and can terminate trap-mode UBSan builds with SIGILL, resulting in denial of service.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00111 · 1.3th percentile
Weakness
CWE-682 · Incorrect Calculation
Published
2026-09-24T20:17Z
References (2)
https://github.com/mchehab/zbar/issues/336 · [email protected]https://github.com/mchehab/zbar/issues/336 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 26 SEP 03:27Z
    EPSS moved — → 0%
    epss
  • 24 SEP 00:00Z
    ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6() function
    cvelistv5