Read the docs
TI-2026-03475 Aliases CVE-2026-4012GHSA-jw4f-7h4g-j7fj

rxi fe fe.c read_ out-of-bounds

Priority MEDIUM 55CWE-119Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

A vulnerability was determined in rxi fe up to ed4cda96bd582cbb08520964ba627efb40f3dd91. The impacted element is the function read_ of the file src/fe.c. This manipulation with the input 1 causes out-of-bounds read. The attack requires local access. The exploit has been publicly disclosed and may be utilized. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00131 2nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
rxifeed4cda96bd582cbb08520964ba627efb40f3dd91—No fix listedCNA
  • fe Vendorrxi Affected ed4cda96bd582cbb08520964ba627efb40f3dd91 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-4012
  2. 2026-10-03 Alias added: GHSA-jw4f-7h4g-j7fj

References

Exploit 1

Other 2

  • TI-2026-31728 microtar 0.1.0 Stack-Based Buffer Overflow via raw_to_header() CVSS 4.0HIGH 8.7
  • TI-2026-49935 microtar Stack Buffer Overflow in mtar_write_file_header() and mtar_write_dir_header() CVSS 3.1CRITICAL 9.8
  • TI-2026-40236 Stack Buffer Overflow in rxi/microtar raw_to_header() via non-null-terminated TAR name field CVSS 4.0HIGH 8.7
  • TI-2026-39293 Integer Overflow in rxi/microtar mtar_next() Causes Infinite Loop DoS CVSS 4.0HIGH 8.7

Sources

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