CVE catalog

CVE-2015-7687

opensmtpd: CVE-2015-7687

[CVE catalog]

Severity
Medium
Published
Source
[NVD] · [CVE record]
EPSS
4.04% · Oct 25, 2026

Use-after-free vulnerability in OpenSMTPD before 5.7.2 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via vectors involving req_ca_vrfy_smtp and req_ca_vrfy_mta.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianopensmtpdsid7.9.0p0-1fixed
Debianopensmtpdforky7.9.0p0-1fixed
Debianopensmtpdtrixie7.6.0p1-1fixed
Debianopensmtpdbookworm6.8.0p2-4fixed
Ubuntuopensmtpdpro5.3.3p1-4vulnerable
Ubuntuopensmtpdpro5.4.1p1-1vulnerable
Ubuntuopensmtpdpro5.4.1p1-1ubuntu0.1~esm1vulnerable

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianopensmtpdsourcesid5.7.3p1-1not yet assignedNot reported[800787]
Debianopensmtpdsourceforky5.7.3p1-1not yet assignedNot reported[800787]
Debianopensmtpdsourcetrixie5.7.3p1-1not yet assignedNot reported[800787]
Debianopensmtpdsourcebookworm5.7.3p1-1not yet assignedNot reported[800787]

[Debian bug #800787]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [opensmtpd]Fixed
    Details (4)

    • 6.8.0p2-4+b4 · amd64 · bookworm

      Fixed · Fixed: 5.7.3p1-1

      dsa · opensmtpd · debian · bookworm; dsa · opensmtpd · debian · 12

    • 6.8.0p2-4+b4 · arm64 · bookworm

      Fixed · Fixed: 5.7.3p1-1

      dsa · opensmtpd · debian · bookworm; dsa · opensmtpd · debian · 12

    • 7.4.0p1-1~bpo12+1 · amd64 · bookworm-backports

      Fixed · Fixed: 5.7.3p1-1

      dsa · opensmtpd · debian · bookworm; dsa · opensmtpd · debian · 12

    • 7.4.0p1-1~bpo12+1 · arm64 · bookworm-backports

      Fixed · Fixed: 5.7.3p1-1

      dsa · opensmtpd · debian · bookworm; dsa · opensmtpd · debian · 12

[Debian 13 (Trixie)]

  • [opensmtpd]Fixed
    Details (2)

    • 7.6.0p1-1 · amd64 · trixie

      Fixed · Fixed: 5.7.3p1-1

      dsa · opensmtpd · debian · 13

    • 7.6.0p1-1 · arm64 · trixie

      Fixed · Fixed: 5.7.3p1-1

      dsa · opensmtpd · debian · 13

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]