Asterisk Open Source 1.2.26 through 1.2.30.3 and Business Edition B.2.3.5 through…
Priority LOW 24CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
Asterisk Open Source 1.2.26 through 1.2.30.3 and Business Edition B.2.3.5 through B.2.5.5, when realtime IAX2 users are enabled, allows remote attackers to cause a denial of service (crash) via authentication attempts involving (1) an unknown user or (2) a user using hostname matching.
Why it matters now
EPSS 0.01959 80th 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 · 17
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.4:*:*:*:*:*:*:* | b.2.3.4 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.5:*:*:*:*:*:*:* | b.2.3.5 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:asterisk_business_edition:b.2.5.0:*:*:*:*:*:*:* | b.2.5.0 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:asterisk_business_edition:b.2.5.1:*:*:*:*:*:*:* | b.2.5.1 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:asterisk_business_edition:b.2.5.3:*:*:*:*:*:*:* | b.2.5.3 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:open_source:1.2.26:*:*:*:*:*:*:* | 1.2.26 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:open_source:1.2.26:netsec:*:*:*:*:*:* | 1.2.26 netsec | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:open_source:1.2.26.1:*:*:*:*:*:*:* | 1.2.26.1 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:open_source:1.2.26.1:netsec:*:*:*:*:*:* | 1.2.26.1 netsec | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:open_source:1.2.26.2:*:*:*:*:*:*:* | 1.2.26.2 | Vulnerable | asterisk |
- cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.4:*:*:*:*:*:*:* Versions b.2.3.4 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.5:*:*:*:*:*:*:* Versions b.2.3.5 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:asterisk_business_edition:b.2.5.0:*:*:*:*:*:*:* Versions b.2.5.0 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:asterisk_business_edition:b.2.5.1:*:*:*:*:*:*:* Versions b.2.5.1 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:asterisk_business_edition:b.2.5.3:*:*:*:*:*:*:* Versions b.2.5.3 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:open_source:1.2.26:*:*:*:*:*:*:* Versions 1.2.26 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:open_source:1.2.26:netsec:*:*:*:*:*:* Versions 1.2.26 netsec Vulnerable ·asterisk
- cpe:2.3:a:asterisk:open_source:1.2.26.1:*:*:*:*:*:*:* Versions 1.2.26.1 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:open_source:1.2.26.1:netsec:*:*:*:*:*:* Versions 1.2.26.1 netsec Vulnerable ·asterisk
- cpe:2.3:a:asterisk:open_source:1.2.26.2:*:*:*:*:*:*:* Versions 1.2.26.2 Vulnerable ·asterisk
Show 7 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:asterisk:open_source:1.2.26.2:netsec:*:*:*:*:*:* | 1.2.26.2 netsec | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:open_source:1.2.27:*:*:*:*:*:*:* | 1.2.27 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:open_source:1.2.28:*:*:*:*:*:*:* | 1.2.28 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:open_source:1.2.29:*:*:*:*:*:*:* | 1.2.29 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:open_source:1.2.30:*:*:*:*:*:*:* | 1.2.30 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:open_source:1.2.30.2:*:*:*:*:*:*:* | 1.2.30.2 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:open_source:1.2.30.3:*:*:*:*:*:*:* | 1.2.30.3 | Vulnerable | asterisk |
- cpe:2.3:a:asterisk:open_source:1.2.26.2:netsec:*:*:*:*:*:* Versions 1.2.26.2 netsec Vulnerable ·asterisk
- cpe:2.3:a:asterisk:open_source:1.2.27:*:*:*:*:*:*:* Versions 1.2.27 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:open_source:1.2.28:*:*:*:*:*:*:* Versions 1.2.28 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:open_source:1.2.29:*:*:*:*:*:*:* Versions 1.2.29 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:open_source:1.2.30:*:*:*:*:*:*:* Versions 1.2.30 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:open_source:1.2.30.2:*:*:*:*:*:*:* Versions 1.2.30.2 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:open_source:1.2.30.3:*:*:*:*:*:*:* Versions 1.2.30.3 Vulnerable ·asterisk
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2008-5558
- 2026-10-03 Alias added: GHSA-rvg3-83c6-fx75
References
More Asterisk Business Edition vulnerabilities
- TI-2008-01337 The AsteriskGUI HTTP server in Asterisk Open Source 1.4.x before 1.4.19-rc3 and 1.6.x… CVSS 2.0HIGH 9.3
- TI-2008-01239 Multiple buffer overflows in Asterisk Open Source 1.4.x before 1.4.18.1 and 1.4.19-rc3… CVSS 2.0HIGH 7.5
- TI-2008-00085 The SIP channel driver in Asterisk Open Source 1.4.x before 1.4.17, Business Edition… CVSS 2.0MEDIUM 5.0
- TI-2008-01282 Unspecified vulnerability in Asterisk Open Source 1.2.x before 1.2.27, 1.4.x before… CVSS 2.0HIGH 8.8
- TI-2008-03126 The FWDOWNL firmware-download implementation in Asterisk Open Source 1.0.x, 1.2.x before… CVSS 2.0HIGH 7.8
- TI-2008-01847 The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before… CVSS 2.0HIGH 7.1
Sources
- CVE-2008-5558 · CVE Program
- CVE-2008-5558 · NVD
- FIRST EPSS
- GHSA-rvg3-83c6-fx75 · 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