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CVE-2026-58082

9.8 critical SSVC exploitation: none Analyzed
NVD · CVE.org

The ISO-2022 encoding module used a stack buffer sized to MB_LEN_MAX (6 bytes) for intermediate character output. Some ISO-2022 variants can require up to 10 bytes per character, in which case conversions can trigger a stack buffer overflow of up to four bytes. 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.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 9.8 · freebsdNVD modified 2026-10-27 12:10

Affected (CPE criteria) 38

  • cpe:2.3:o:freebsd:freebsd:14.3:-:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p1:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p10:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p11:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p12:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p13:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p14:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p15:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p2:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p3:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p4:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p5:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p6:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p7:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p8:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.3:p9:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:-:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p1:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p2:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p3:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p4:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p5:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:p6:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:14.4:rc1:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:-:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p1:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p10:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p2:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p3:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p4:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p5:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p6:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p7:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p8:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.0:p9:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.1:-:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.1:rc2:*:*:*:*:*:*
  • cpe:2.3:o:freebsd:freebsd:15.1:rc3-p1:*:*:*:*:*:*

References 1