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TI-2021-02455 Aliases CVE-2021-3496GHSA-rvxv-5pj2-85pq

A heap-based buffer overflow was found in jhead in version 3.06 in Get16u() in exif.c when processing a crafted file.

Priority LOW 36CWE-119Published · 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-119 and the CVSS impact.

Summary

A heap-based buffer overflow was found in jhead in version 3.06 in Get16u() in exif.c when processing a crafted file.

Why it matters now

EPSS 0.01065 64th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged 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
—jheadjhead 3.06.0.1—No fix listedCNA
  • jhead Vendor— Affected jhead 3.06.0.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jhead_project:jhead:3.06:*:*:*:*:*:*:*3.06VulnerableJhead Project
  • cpe:2.3:a:jhead_project:jhead:3.06:*:*:*:*:*:*:* Versions 3.06 Vulnerable ·Jhead Project

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-3496
  2. 2026-10-03 Alias added: GHSA-rvxv-5pj2-85pq

References

Exploit 1

Advisory 2

  • TI-2022-11226 Matthias-Wandel/jhead jhead 3.06 is vulnerable to Buffer Overflow via shellescape()… CVSS 3.1CRITICAL 9.8
  • TI-2025-28699 jhead v3.08 was discovered to contain a heap-use-after-free via the ProcessFile function at jhead.c. CVSS 3.1HIGH 7.8
  • TI-2022-20137 Jhead 3.06.0.1 allows attackers to execute arbitrary OS commands by placing them in a… CVSS 3.1HIGH 7.8
  • TI-2020-16030 Heap-buffer-overflow in jhead CVSS 3.1MEDIUM 6.1
  • TI-2018-11874 The ProcessGpsInfo function of the gpsinfo.c file of jhead 3.00 may allow a remote… CVSS 3.0HIGH 7.8
  • TI-2018-12214 The ProcessGpsInfo function of the gpsinfo.c file of jhead 3.00 may allow a remote… CVSS 3.0HIGH 7.8
See all 17 →

Sources

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