Back
CVE-2007-4521
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…
- 5.0MediumCVSS base score
- 3.0%Exploitation in 30 daysEPSS · top 13% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By mitre
- 4 days later
· 4 days later
Published
- 17 years later
· 17 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 3.0% · top 13% of all CVEs (10 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Affected products
n/a
- affected n/a
References
9
- 26601 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 1018606 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://downloads.digium.com/pub/asa/AST-2007-021.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20070824 AST-2007-021: Crash from invalid/corrupted MIME bodies when using voicemail with IMAP storage (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 26602 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- asterisk-mime-body-dos(36261) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- ADV-2007-2978 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 25438 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 3065 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2007-4504 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2007-4521)Record last updated .