The resolver in Unbound before 1.4.11 overwrites cached server names and TTL values in NS…
Priority LOW 31Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The resolver in Unbound before 1.4.11 overwrites cached server names and TTL values in NS records during the processing of a response to an A record query, which allows remote attackers to trigger continued resolvability of revoked domain names via a "ghost domain names" attack.
Why it matters now
EPSS 0.01312 70th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 37
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:unbound:unbound:*:*:*:*:*:*:*:* | up to 1.4.10 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.0:*:*:*:*:*:*:* | 0.0 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.1:*:*:*:*:*:*:* | 0.1 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.2:*:*:*:*:*:*:* | 0.2 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.3:*:*:*:*:*:*:* | 0.3 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.4:*:*:*:*:*:*:* | 0.4 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.5:*:*:*:*:*:*:* | 0.5 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.6:*:*:*:*:*:*:* | 0.6 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.7:*:*:*:*:*:*:* | 0.7 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.7.1:*:*:*:*:*:*:* | 0.7.1 | Vulnerable | Unbound |
- cpe:2.3:a:unbound:unbound:*:*:*:*:*:*:*:* Versions up to 1.4.10 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.0:*:*:*:*:*:*:* Versions 0.0 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.1:*:*:*:*:*:*:* Versions 0.1 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.2:*:*:*:*:*:*:* Versions 0.2 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.3:*:*:*:*:*:*:* Versions 0.3 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.4:*:*:*:*:*:*:* Versions 0.4 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.5:*:*:*:*:*:*:* Versions 0.5 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.6:*:*:*:*:*:*:* Versions 0.6 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.7:*:*:*:*:*:*:* Versions 0.7 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.7.1:*:*:*:*:*:*:* Versions 0.7.1 Vulnerable ·Unbound
Show 27 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:unbound:unbound:0.7.2:*:*:*:*:*:*:* | 0.7.2 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.8:*:*:*:*:*:*:* | 0.8 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.9:*:*:*:*:*:*:* | 0.9 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.10:*:*:*:*:*:*:* | 0.10 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:0.11:*:*:*:*:*:*:* | 0.11 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.0.0:*:*:*:*:*:*:* | 1.0.0 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.0.1:*:*:*:*:*:*:* | 1.0.1 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.0.2:*:*:*:*:*:*:* | 1.0.2 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.1.0:*:*:*:*:*:*:* | 1.1.0 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.1.1:*:*:*:*:*:*:* | 1.1.1 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.2.0:*:*:*:*:*:*:* | 1.2.0 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.2.1:*:*:*:*:*:*:* | 1.2.1 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.3.0:*:*:*:*:*:*:* | 1.3.0 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.3.1:*:*:*:*:*:*:* | 1.3.1 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.3.2:*:*:*:*:*:*:* | 1.3.2 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.3.3:*:*:*:*:*:*:* | 1.3.3 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.3.4:*:*:*:*:*:*:* | 1.3.4 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.4.0:*:*:*:*:*:*:* | 1.4.0 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.4.1:*:*:*:*:*:*:* | 1.4.1 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.4.2:*:*:*:*:*:*:* | 1.4.2 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.4.3:*:*:*:*:*:*:* | 1.4.3 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.4.4:*:*:*:*:*:*:* | 1.4.4 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.4.5:*:*:*:*:*:*:* | 1.4.5 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.4.6:*:*:*:*:*:*:* | 1.4.6 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.4.7:*:*:*:*:*:*:* | 1.4.7 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.4.8:*:*:*:*:*:*:* | 1.4.8 | Vulnerable | Unbound |
| cpe:2.3:a:unbound:unbound:1.4.9:*:*:*:*:*:*:* | 1.4.9 | Vulnerable | Unbound |
- cpe:2.3:a:unbound:unbound:0.7.2:*:*:*:*:*:*:* Versions 0.7.2 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.8:*:*:*:*:*:*:* Versions 0.8 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.9:*:*:*:*:*:*:* Versions 0.9 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.10:*:*:*:*:*:*:* Versions 0.10 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:0.11:*:*:*:*:*:*:* Versions 0.11 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.0.0:*:*:*:*:*:*:* Versions 1.0.0 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.0.1:*:*:*:*:*:*:* Versions 1.0.1 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.0.2:*:*:*:*:*:*:* Versions 1.0.2 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.1.0:*:*:*:*:*:*:* Versions 1.1.0 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.1.1:*:*:*:*:*:*:* Versions 1.1.1 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.2.0:*:*:*:*:*:*:* Versions 1.2.0 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.2.1:*:*:*:*:*:*:* Versions 1.2.1 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.3.0:*:*:*:*:*:*:* Versions 1.3.0 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.3.1:*:*:*:*:*:*:* Versions 1.3.1 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.3.2:*:*:*:*:*:*:* Versions 1.3.2 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.3.3:*:*:*:*:*:*:* Versions 1.3.3 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.3.4:*:*:*:*:*:*:* Versions 1.3.4 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.4.0:*:*:*:*:*:*:* Versions 1.4.0 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.4.1:*:*:*:*:*:*:* Versions 1.4.1 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.4.2:*:*:*:*:*:*:* Versions 1.4.2 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.4.3:*:*:*:*:*:*:* Versions 1.4.3 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.4.4:*:*:*:*:*:*:* Versions 1.4.4 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.4.5:*:*:*:*:*:*:* Versions 1.4.5 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.4.6:*:*:*:*:*:*:* Versions 1.4.6 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.4.7:*:*:*:*:*:*:* Versions 1.4.7 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.4.8:*:*:*:*:*:*:* Versions 1.4.8 Vulnerable ·Unbound
- cpe:2.3:a:unbound:unbound:1.4.9:*:*:*:*:*:*:* Versions 1.4.9 Vulnerable ·Unbound
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2012-1192
- 2026-10-03 Alias added: GHSA-w9x7-rg7h-623x
References
More Unbound vulnerabilities
- TI-2011-04189 validator/val_nsec3.c in Unbound before 1.4.13p2 does not properly perform proof… CVSS 2.0HIGH 7.8
- TI-2011-03899 Unbound before 1.4.13p2 attempts to free unallocated memory during processing of… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2012-1192 · CVE Program
- CVE-2012-1192 · NVD
- FIRST EPSS
- GHSA-w9x7-rg7h-623x · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences