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…

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.

Scores

EPSS (exploitation in 30 days)

3.0% · top 13% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.

Weakness

• n/a

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)
• 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

[![CVE-2007-4521](https://trackcve.app/badge/CVE-2007-4521.svg)](https://trackcve.app/cve/CVE-2007-4521)

Record last updated 7 Aug 2024, 15:01 UTC.