The SIP channel driver in Asterisk Open Source 1.4.x before 1.4.17, Business Edition before C.1.0-beta8, AsteriskNOW before beta7, Appliance Developer Kit before Asterisk 1.4 revision 95946, and Appliance s800i 1.0.x before 1.0.3.4 allows remote attackers to cause a denial of service (daemon crash) via a BYE message with an Also (Also transfer) header, which triggers a NULL pointer dereference.
Conclusion & alert: CVE-2008-0095 is rated High Exploit Risk (68.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 26.55%, 96th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 30974 | exploit_db | edb | 2008-01-02 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-25 | 26.78% | 26.55% | -0.22% |
| 2 | 2025-10-27 | 31.36% | 26.78% | -4.58% |
| 3 | 2025-03-30 | — | 31.36% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
medium | CVE-2008-0095 medium priority: Debian including 1 source packages (asterisk), 2 status rows across 2 suites (bullseye, sid): resolved 2. | https://security-tracker.debian.org/tracker/CVE-2008-0095 |
ubuntu
|
medium | CVE-2008-0095 medium priority: Ubuntu including 1 source packages (asterisk), 7 status rows across 7 suites (dapper, edgy, feisty, gutsy, hardy, intrepid, upstream): not-affected 3, released 3, ignored 1. | https://ubuntu.com/security/CVE-2008-0095 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| asterisk | asterisk_appliance_developer_kit | <= 1.4_revision_95945 | cpe:2.3:a:asterisk:asterisk_appliance_developer_kit:*:*:*:*:*:*:*:* |
| asterisk | asterisk_business_edition | <= c.1.0beta7 | cpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:* |
| asterisk | asterisknow | <= beta_6 | cpe:2.3:a:asterisk:asterisknow:*:*:*:*:*:*:*:* |
| asterisk | open_source | <= 1.4.16 | cpe:2.3:a:asterisk:open_source:*:*:*:*:*:*:*:* |
| asterisk | s800i | <= 1.0.3.3 | cpe:2.3:a:asterisk:s800i:*:*:*:*:*:*:*:* |