Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote…

Description

Stack-based buffer overflow in the MercuryS SMTP server in Mercury Mail Transport System, possibly 4.51 and earlier, allows remote attackers to execute arbitrary code via a long AUTH CRAM-MD5 string. NOTE: this might overlap CVE-2006-5961.

Scores

EPSS (exploitation in 30 days)

64.5% · top 0.8% of all CVEs (4 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

• n/a
• CWE-119 (opens in a new tab)All about CWE-119 and its CVEs

Affected products

• n/a

  • affected n/a

References (9)

• 26519 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 20070818 Mercury SMTPD Remote Preauth Stack Based Overrun (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
• ADV-2007-2918 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 4294 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
• http://www.pmail.com/m32_451.htm (opens in a new tab)x_refsource_CONFIRMx_transferred
• 25357 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• mercury-smtp-bo(36117) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
• 1018587 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• mercury-authcrammd5-bo(36299) (opens in a new tab)vdb-entryx_refsource_XFx_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-2007-4440](https://trackcve.app/badge/CVE-2007-4440.svg)](https://trackcve.app/cve/CVE-2007-4440)

Record last updated 7 Aug 2024, 14:53 UTC.