Description
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.
Published: 2026-10-15
Score: 6.9 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories

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History

Thu, 15 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title catdoc through 0.95 Out-of-Bounds Read via xls2csv copy_unicode_string
First Time appeared Fossies
Fossies catdoc
Weaknesses CWE-125
CPEs cpe:2.3:a:fossies:catdoc:*:*:*:*:*:*:*:*
Vendors & Products Fossies
Fossies catdoc
References
Metrics cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}

Subscriptions

Fossies Catdoc
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-15T18:57:23.479Z

Reserved: 2026-10-15T17:03:51.865Z

Link: CVE-2026-111127

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-15T19:17:26.073

Modified: 2026-10-15T19:17:26.073

Link: CVE-2026-111127

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses