Asterisk Open Source 1.2.x before 1.2.32, 1.4.x before 1.4.24.1, and 1.6.0.x before…
Priority LOW 21CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
Asterisk Open Source 1.2.x before 1.2.32, 1.4.x before 1.4.24.1, and 1.6.0.x before 1.6.0.8; Asterisk Business Edition A.x.x, B.x.x before B.2.5.8, C.1.x.x before C.1.10.5, and C.2.x.x before C.2.3.3; s800i 1.3.x before 1.3.0.2; and Trixbox PBX 2.6.1, when Digest authentication and authalwaysreject are enabled, generates different responses depending on whether a SIP username is valid, which allows remote attackers to enumerate valid usernames.
Why it matters now
EPSS 0.01852 79th 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 · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:asterisk:p_b_x:1.2:*:*:*:*:*:*:* | 1.2 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:p_b_x:1.2.22:*:*:*:*:*:*:* | 1.2.22 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:p_b_x:1.4.21.1:*:*:*:*:*:*:* | 1.4.21.1 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:p_b_x:1.6:*:*:*:*:*:*:* | 1.6 | Vulnerable | asterisk |
| cpe:2.3:a:trixbox:pbx:2.6.1:*:*:*:*:*:*:* | 2.6.1 | Vulnerable | Trixbox |
- cpe:2.3:a:asterisk:p_b_x:1.2:*:*:*:*:*:*:* Versions 1.2 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:p_b_x:1.2.22:*:*:*:*:*:*:* Versions 1.2.22 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:p_b_x:1.4.21.1:*:*:*:*:*:*:* Versions 1.4.21.1 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:p_b_x:1.6:*:*:*:*:*:*:* Versions 1.6 Vulnerable ·asterisk
- cpe:2.3:a:trixbox:pbx:2.6.1:*:*:*:*:*:*:* Versions 2.6.1 Vulnerable ·Trixbox
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2008-3903
- 2026-10-03 Alias added: GHSA-m5r8-ppgr-h5vx
References
Sources
- CVE-2008-3903 · CVE Program
- CVE-2008-3903 · NVD
- FIRST EPSS
- GHSA-m5r8-ppgr-h5vx · GitHub Advisory Database · CC BY 4.0
- CVE-2008-3903 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences