c-ares before 1.4.0 uses a predictable seed for the random number generator for the DNS…
Priority LOW 36Published · 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
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
c-ares before 1.4.0 uses a predictable seed for the random number generator for the DNS Transaction ID field, which might allow remote attackers to spoof DNS responses by guessing the field value.
Why it matters now
EPSS 0.01402 72nd 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 · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:daniel_stenberg:c-ares:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | Daniel Stenberg |
| cpe:2.3:a:daniel_stenberg:c-ares:1.1:*:*:*:*:*:*:* | 1.1 | Vulnerable | Daniel Stenberg |
| cpe:2.3:a:daniel_stenberg:c-ares:1.2:*:*:*:*:*:*:* | 1.2 | Vulnerable | Daniel Stenberg |
| cpe:2.3:a:daniel_stenberg:c-ares:1.2.1:*:*:*:*:*:*:* | 1.2.1 | Vulnerable | Daniel Stenberg |
| cpe:2.3:a:daniel_stenberg:c-ares:1.3:*:*:*:*:*:*:* | 1.3 | Vulnerable | Daniel Stenberg |
| cpe:2.3:a:daniel_stenberg:c-ares:1.3.1:*:*:*:*:*:*:* | 1.3.1 | Vulnerable | Daniel Stenberg |
| cpe:2.3:a:daniel_stenberg:c-ares:1.3.2:*:*:*:*:*:*:* | 1.3.2 | Vulnerable | Daniel Stenberg |
- cpe:2.3:a:daniel_stenberg:c-ares:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Daniel Stenberg
- cpe:2.3:a:daniel_stenberg:c-ares:1.1:*:*:*:*:*:*:* Versions 1.1 Vulnerable ·Daniel Stenberg
- cpe:2.3:a:daniel_stenberg:c-ares:1.2:*:*:*:*:*:*:* Versions 1.2 Vulnerable ·Daniel Stenberg
- cpe:2.3:a:daniel_stenberg:c-ares:1.2.1:*:*:*:*:*:*:* Versions 1.2.1 Vulnerable ·Daniel Stenberg
- cpe:2.3:a:daniel_stenberg:c-ares:1.3:*:*:*:*:*:*:* Versions 1.3 Vulnerable ·Daniel Stenberg
- cpe:2.3:a:daniel_stenberg:c-ares:1.3.1:*:*:*:*:*:*:* Versions 1.3.1 Vulnerable ·Daniel Stenberg
- cpe:2.3:a:daniel_stenberg:c-ares:1.3.2:*:*:*:*:*:*:* Versions 1.3.2 Vulnerable ·Daniel Stenberg
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2007-3152
- 2026-10-03 Alias added: GHSA-77x3-jh2q-2qvx
References
More Daniel Stenberg C-ares vulnerabilities
- TI-2007-03050 The ares_init:randomize_key function in c-ares, on platforms other than Windows, uses a… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2007-3152 · CVE Program
- CVE-2007-3152 · NVD
- FIRST EPSS
- GHSA-77x3-jh2q-2qvx · GitHub Advisory Database · CC BY 4.0
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