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TI-2021-14172 Aliases CVE-2021-35331GHSA-539q-24vg-qfm4

In Tcl 8.6.11, a format string vulnerability in nmakehlp.c might allow code execution via…

Priority LOW 37CWE-134Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-134 and the CVSS impact.

Summary

In Tcl 8.6.11, a format string vulnerability in nmakehlp.c might allow code execution via a crafted file. NOTE: multiple third parties dispute the significance of this finding

Why it matters now

EPSS 0.01689 77th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:tcl:tcl:8.6.11:*:*:*:*:*:*:*8.6.11VulnerableTCL
  • cpe:2.3:a:tcl:tcl:8.6.11:*:*:*:*:*:*:* Versions 8.6.11 Vulnerable ·TCL

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-35331
  2. 2026-10-03 Alias added: GHSA-539q-24vg-qfm4

References

Exploit 3

Patch 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences