CVE-2012-5521
MEDIUMCVSS 6.5/10EPSS 1.49%
Last modified
CVE-2012-5521 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal. EPSS estimates a 1.49% chance of exploitation in the next 30 days.
Description
quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Quagga | Quagga | 0.99.21 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Debian | Debian Linux | 10.0 |
| Redhat | Enterprise Linux | 5.0 |
| Redhat | Enterprise Linux | 6.0 |
References
- http://www.openwall.com/lists/oss-security/2012/11/13/14Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/56530Third Party Advisory, VDB Entry
- https://access.redhat.com/security/cve/cve-2012-5521Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-5521Issue Tracking, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-5521Issue Tracking, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80096Third Party Advisory, VDB Entry
- https://security-tracker.debian.org/tracker/CVE-2012-5521Third Party Advisory
- http://www.openwall.com/lists/oss-security/2012/11/13/14Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/56530Third Party Advisory, VDB Entry
- https://access.redhat.com/security/cve/cve-2012-5521Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-5521Issue Tracking, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-5521Issue Tracking, Third Party Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80096Third Party Advisory, VDB Entry
- https://security-tracker.debian.org/tracker/CVE-2012-5521Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2012-5521?
quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal
How severe is CVE-2012-5521?
CVE-2012-5521 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.49% probability of exploitation in the next 30 days.
How do I fix CVE-2012-5521?
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-2012-5521?
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Scan your code nowSource: NVD / NIST
