CVE-2012-5521
quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal
quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal
- Record
CVE-2012-5521- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 3.3 Low
AV:A/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-617
- Updated
- 2026-11-02
CVE List No score
quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal
- Record
CVE-2012-5521- Updated
- 2026-11-02
EUVDEUVD-2012-5413 No score
quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal
- Record
EUVD-2012-5413- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-r8m3-p659-7pmw
quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal
quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal
- Record
GHSA-r8m3-p659-7pmw- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-617
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2012-5521
quagga (ospf6d) 0.99.21 has a DoS flaw in the way the ospf6d daemon performs routes removal
- Record
UBUNTU-CVE-2012-5521- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
quaggaUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 0.99.24.1-20.99.24.1-2ubuntu10.99.24.1-2ubuntu1.10.99.24.1-2ubuntu1.20.99.24.1-2ubuntu1.30.99.24.1-2ubuntu1.40.99.24.1-2ubuntu1.4+esm1 |
None known |
quaggaUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 1.1.1-31.1.1-3ubuntu11.2.2-11.2.2-1ubuntu11.2.4-11.2.4-1ubuntu0.1~esm11.2.4-1ubuntu0.1~esm2 |
None known |
quaggaUbuntu:20.04:LTS |
All versions, plus listed versions 1.2.4-4build11.2.4-4ubuntu0.11.2.4-4ubuntu0.41.2.4-4ubuntu0.5 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2012-5521 is a medium vulnerability (CVSS 6.5) in Quagga, published November 25, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.49%, the 74th percentile. No source names a fixed version.