Description
Several encoding modules, including HZ, UTF-7, VIQR, and ZW, did not properly check the size of the caller-supplied output buffer before writing converted characters.

An application that uses iconv(3) to convert untrusted input to or from one of the affected encodings may be vulnerable to buffer overflows if it uses one of the affected encoding modules.
Published: 2026-08-19
Score: n/a
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

No vendor fix or workaround currently provided.

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History

Wed, 19 Aug 2026 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Freebsd
Freebsd freebsd
Vendors & Products Freebsd
Freebsd freebsd

Wed, 19 Aug 2026 07:30:00 +0000

Type Values Removed Values Added
Description Several encoding modules, including HZ, UTF-7, VIQR, and ZW, did not properly check the size of the caller-supplied output buffer before writing converted characters. An application that uses iconv(3) to convert untrusted input to or from one of the affected encodings may be vulnerable to buffer overflows if it uses one of the affected encoding modules.
Title Heap based buffer overflow in iconv(3)
Weaknesses CWE-122
References

Subscriptions

Freebsd Freebsd
cve-icon MITRE

Status: PUBLISHED

Assigner: freebsd

Published:

Updated: 2026-08-19T07:20:26.880Z

Reserved: 2026-06-29T01:40:17.498Z

Link: CVE-2026-58081

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-19T08:17:12.263

Modified: 2026-08-19T08:17:12.263

Link: CVE-2026-58081

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-19T20:00:05Z

Weaknesses
  • CWE-122

    Heap-based Buffer Overflow