CVE-2016-4456
HIGHCVSS 7.5/10EPSS 2.20%
Last modified
CVE-2016-4456 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. The "GNUTLS_KEYLOGFILE" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.. EPSS estimates a 2.20% chance of exploitation in the next 30 days.
Description
The "GNUTLS_KEYLOGFILE" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Gnutls | 3.4.12 |
References
- http://www.openwall.com/lists/oss-security/2016/06/07/6Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1343505Issue Tracking, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/06/07/6Mailing List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1343505Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-4456?
The "GNUTLS_KEYLOGFILE" environment variable in gnutls 3.4.12 allows remote attackers to overwrite and corrupt arbitrary files in the filesystem.
How severe is CVE-2016-4456?
CVE-2016-4456 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.20% probability of exploitation in the next 30 days.
How do I fix CVE-2016-4456?
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-2016-4456?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST