Asterisk Open Source 1.4.5 through 1.4.11, when configured to use an IMAP voicemail…
Priority LOW 28Published · 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 · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
Asterisk Open Source 1.4.5 through 1.4.11, when configured to use an IMAP voicemail storage backend, allows remote attackers to cause a denial of service via an e-mail with an "invalid/corrupted" MIME body, which triggers a crash when the recipient listens to voicemail.
Why it matters now
EPSS 0.02998 87th 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:asterisk:asterisk:1.4.5:*:*:*:*:*:*:* | 1.4.5 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:asterisk:1.4.6:*:*:*:*:*:*:* | 1.4.6 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:asterisk:1.4.7:*:*:*:*:*:*:* | 1.4.7 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:asterisk:1.4.8:*:*:*:*:*:*:* | 1.4.8 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:asterisk:1.4.9:*:*:*:*:*:*:* | 1.4.9 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:asterisk:1.4.10:*:*:*:*:*:*:* | 1.4.10 | Vulnerable | asterisk |
| cpe:2.3:a:asterisk:asterisk:1.4.11:*:*:*:*:*:*:* | 1.4.11 | Vulnerable | asterisk |
- cpe:2.3:a:asterisk:asterisk:1.4.5:*:*:*:*:*:*:* Versions 1.4.5 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:asterisk:1.4.6:*:*:*:*:*:*:* Versions 1.4.6 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:asterisk:1.4.7:*:*:*:*:*:*:* Versions 1.4.7 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:asterisk:1.4.8:*:*:*:*:*:*:* Versions 1.4.8 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:asterisk:1.4.9:*:*:*:*:*:*:* Versions 1.4.9 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:asterisk:1.4.10:*:*:*:*:*:*:* Versions 1.4.10 Vulnerable ·asterisk
- cpe:2.3:a:asterisk:asterisk:1.4.11:*:*:*:*:*:*:* Versions 1.4.11 Vulnerable ·asterisk
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2007-4521
- 2026-10-03 Alias added: GHSA-58rf-9xjg-2wv7
References
More Asterisk vulnerabilities
- TI-2024-28351 Asterisk allows `Write=originate` as sufficient permissions for code execution / `System()` dialplan CVSS 3.1HIGH 8.8
- TI-2008-03125 The IAX2 protocol implementation in Asterisk Open Source 1.0.x, 1.2.x before 1.2.30, and… CVSS 2.0HIGH 7.8
- TI-2007-02211 Multiple stack-based buffer overflows in the process_sdp function in chan_sip.c of the… CVSS 2.0HIGH 7.6
- TI-2007-02404 The IAX2 channel driver (chan_iax2) in Asterisk before 20070504 does not properly null… CVSS 2.0HIGH 10.0
- TI-2007-01503 The channel driver in Asterisk before 1.2.17 and 1.4.x before 1.4.2 allows remote… CVSS 2.0HIGH 7.8
- TI-2007-03651 Stack-based buffer overflow in the IAX2 channel driver (chan_iax2) in Asterisk before… CVSS 2.0HIGH 9.3
Sources
- CVE-2007-4521 · CVE Program
- CVE-2007-4521 · NVD
- FIRST EPSS
- GHSA-58rf-9xjg-2wv7 · GitHub Advisory Database · CC BY 4.0
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