MEDIUMCVSS v3.1 6.1Vulnerability

CVE-2026-111127

catdoc through 0.95 contains an out-of-bounds read vulnerability in copy_unicode_string() in src/xlsparse.c that allows attackers to read past buffers via an unchecked string character count. Attackers can supply a crafted .xls file declaring 0xFFFF two-byte characters in LABEL, STRING, or SST records to disclose adjacent memory through xls2csv output or crash the process.

Properties

Severity
MEDIUM
Nvd fetched at
2026-10-20T21:14:08.448323+00:00
Epss score
0.00129
Cvss score
6.1
Cvss severity
MEDIUM
Retrieved at
2026-10-21T01:24:48+00:00
Last source
FIRST EPSS
Score
6.1
Cvss version
3.1
Cve id
CVE-2026-111127
Cvss vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
First seen by Signal
2026-10-18T13:39:03+00:00
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Published at
2026-10-15T19:17:26.073
Last modified
2026-10-16T18:25:45.343
Epss percentile
0.02233

Related Entities (1)

HAS_WEAKNESS (1)

→[Weakness]Out-of-bounds Read

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CVE-2026-111127 (CVSS v3.1 6.1) — Ninja Signal Threat Intelligence | Ninja Signal