TI-2013-01894 Aliases CVE-2013-2125 GHSA-63q3-5f3r-v5j4

OpenSMTPD before 5.3.2 does not properly handle SSL sessions, which allows remote…

LOW 28CWE-310Published 2014-05-27 · Updated 2024-08-06

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

OpenSMTPD before 5.3.2 does not properly handle SSL sessions, which allows remote attackers to cause a denial of service (connection blocking) by keeping a connection open.

Why it matters now

EPSS 0.02474 84th percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged by NVD

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 · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:openbsd:opensmtpd::::::::	up to 5.3.1	Vulnerable	OpenBSD

cpe:2.3:a:openbsd:opensmtpd:*:*:*:*:*:*:*:* Versions up to 5.3.1 Vulnerable ·OpenBSD

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2013-2125
2026-10-03 Alias added: GHSA-63q3-5f3r-v5j4

References

Exploit 2

Other 2

TI-2020-05854 smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other… KEVCVSS 3.1CRITICAL 9.8
TI-2015-06389 Use-after-free vulnerability in OpenSMTPD before 5.7.2 allows remote attackers to cause a… CVSS 3.0CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences