The ares_init:randomize_key function in c-ares, on platforms other than Windows, uses a…
Priority LOW 25Published · 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 · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The ares_init:randomize_key function in c-ares, on platforms other than Windows, uses a weak facility for producing a random number sequence (Unix rand), which makes it easier for remote attackers to spoof DNS responses by guessing certain values.
Why it matters now
EPSS 0.01186 68th 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-2007-3153
- 2026-10-03 Alias added: GHSA-mrjq-p33j-h2vf
References
More Daniel Stenberg C-ares vulnerabilities
- TI-2007-03049 c-ares before 1.4.0 uses a predictable seed for the random number generator for the DNS… CVSS 2.0HIGH 7.5
Sources
- CVE-2007-3153 · CVE Program
- CVE-2007-3153 · NVD
- FIRST EPSS
- GHSA-mrjq-p33j-h2vf · GitHub Advisory Database · CC BY 4.0
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