CVE-2009-1390: n/a vulnerability

CVE-2009-1390: Mutt 1.5.19, when linked against (1) OpenSSL (mutt_ssl.c) or (2) GnuTLS (mutt_ssl_gnutls.c), allows connect...

Mutt 1.5.19, when linked against (1) OpenSSL (mutt_ssl.c) or (2) GnuTLS (mutt_ssl_gnutls.c), allows connections when only one TLS certificate in the chain is accepted instead of verifying the entire chain, which allows remote attackers to spoof trusted servers via a man-in-the-middle attack.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 05:13 UTC (UTC+00:00)

Security readout for executives and security teams

Mutt 1.5.19 could trust a TLS connection after accepting only part of a certificate chain. An attacker in a network man-in-the-middle position could impersonate a trusted mail server, putting email confidentiality and credentials at risk for users of affected builds. Exposure is most likely in legacy systems still running Mutt 1.5.19 with OpenSSL or GnuTLS TLS support. Modern systems are less likely exposed, but package version and distribution backports must be verified. Prioritize remediation where Mutt is used for business email on untrusted or shared networks. If no Mutt 1.5.19 deployment exists, document non-exposure and keep normal patch hygiene. Mitigation focus: Inventory systems running Mutt and identify version 1.5.19 installations.; Check distribution advisories for patched Mutt packages or backported fixes.; Apply vendor-provided updates that address certificate chain verification..

Prepared: Jun 28, 2026, 10:45 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jun 16, 2009, 20:26 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
FEDORA-2009-6465CVE reference · vendor-advisory, x_refsource_FEDORA
mutt-x509-security-bypass(51068)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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