CVE-2009-1390

Exp

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.

Published: 2009-06-16 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-1390 is rated High Exploit Risk (70.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.92%). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.48% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2009-1390

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-1390

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.43% 1.92% +1.48%
2 2025-12-28 0.54% 0.43% -0.10%
3 2025-12-27 — 0.54% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1390

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2009-1390

OS Trackers for CVE-2009-1390

vendor priority summary link
debian not yet assigned CVE-2009-1390 not yet assigned priority: Debian including 1 source packages (mutt), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2009-1390
redhat medium — https://access.redhat.com/security/cve/CVE-2009-1390
ubuntu medium CVE-2009-1390 medium priority: Ubuntu including 1 source packages (mutt), 5 status rows across 5 suites (dapper, hardy, intrepid, jaunty, upstream): not-affected 4, needs-triage 1. https://ubuntu.com/security/CVE-2009-1390

Vendor comments (NVD) for CVE-2009-1390

  • Red Hat (2009-06-17T00:00:00)

    Not vulnerable. This issue did not affect the versions of mutt as shipped with Red Hat Enterprise Linux 3, 4, or 5. Only mutt version 1.5.19 was affected by this flaw.

Affected software / configurations for CVE-2009-1390

Vendor Product Version Raw CPE
mutt mutt 1.5.19 cpe:2.3:a:mutt:mutt:1.5.19:*:*:*:*:*:*:*

References for CVE-2009-1390

cvelogic Threat Intelligence