CVE-2021-3496
HIGHCVSS 7.8/10EPSS 1.06%
Last modified
CVE-2021-3496 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A heap-based buffer overflow was found in jhead in version 3.06 in Get16u() in exif.c when processing a crafted file.. EPSS estimates a 1.06% chance of exploitation in the next 30 days.
Description
A heap-based buffer overflow was found in jhead in version 3.06 in Get16u() in exif.c when processing a crafted file.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Jhead Project | Jhead | 3.06 |
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1949245Issue Tracking, Third Party Advisory
- https://github.com/Matthias-Wandel/jhead/issues/33Exploit, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202210-17Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1949245Issue Tracking, Third Party Advisory
- https://github.com/Matthias-Wandel/jhead/issues/33Exploit, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202210-17Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-3496?
A heap-based buffer overflow was found in jhead in version 3.06 in Get16u() in exif.c when processing a crafted file.
How severe is CVE-2021-3496?
CVE-2021-3496 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.06% probability of exploitation in the next 30 days.
How do I fix CVE-2021-3496?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-3496?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST