CVE-2016-2161
UnknownEPSS 20.95%
Last modified
CVE-2016-2161 is a vulnerability of currently unknown severity. In Apache HTTP Server versions 2.4.0 to 2.4.23, malicious input to mod_auth_digest can cause the server to crash, and each instance continues to crash even for subsequently valid requests.. EPSS estimates a 20.95% chance of exploitation in the next 30 days.
Description
In Apache HTTP Server versions 2.4.0 to 2.4.23, malicious input to mod_auth_digest can cause the server to crash, and each instance continues to crash even for subsequently valid requests.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Http Server | 2.4.0 |
| Apache | Http Server | 2.4.1 |
| Apache | Http Server | 2.4.2 |
| Apache | Http Server | 2.4.3 |
| Apache | Http Server | 2.4.6 |
| Apache | Http Server | 2.4.7 |
| Apache | Http Server | 2.4.8 |
| Apache | Http Server | 2.4.9 |
| Apache | Http Server | 2.4.10 |
| Apache | Http Server | 2.4.12 |
| Apache | Http Server | 2.4.14 |
| Apache | Http Server | 2.4.16 |
| Apache | Http Server | 2.4.19 |
| Apache | Http Server | 2.4.20 |
| Apache | Http Server | 2.4.21 |
| Apache | Http Server | 2.4.22 |
| Apache | Http Server | 2.4.23 |
References
- http://www.securityfocus.com/bid/95076Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037508Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201701-36Third Party Advisory
- http://www.securityfocus.com/bid/95076Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037508Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/201701-36Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-2161?
In Apache HTTP Server versions 2.4.0 to 2.4.23, malicious input to mod_auth_digest can cause the server to crash, and each instance continues to crash even for subsequently valid requests.
How severe is CVE-2016-2161?
Severity scoring for CVE-2016-2161 is pending analysis. The EPSS model estimates a 20.95% probability of exploitation in the next 30 days.
How do I fix CVE-2016-2161?
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-2016-2161?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST