MEDIUMCVSS v3.1 5.3Vulnerability

CVE-2026-128991

xschem 2.9.9 through 3.4.7 contains an out-of-bounds read vulnerability in read_xschem_file() in src/save.c that mishandles embedded-symbol records lacking a preceding instance. Attackers can supply a crafted schematic beginning with a "[" record, causing xschem to read and dereference memory below the instance array and crash.

Properties

Severity
MEDIUM
Nvd fetched at
2026-11-14T00:40:25.638091+00:00
Cvss score
5.3
Cvss severity
MEDIUM
Retrieved at
2026-11-14T00:50:05+00:00
Score
5.3
Last source
NVD
Cvss version
3.1
Cve id
CVE-2026-128991
Cvss vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
First seen by Signal
2026-11-13T17:31:47+00:00
Vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H
Published at
2026-11-13T15:17:45.360
Last modified
2026-11-13T21:17:46.120

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]Out-of-bounds Read

Related research

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CVE-2026-128991 (CVSS v3.1 5.3) — Ninja Signal Threat Intelligence | Ninja Signal