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CVE-2009-1390

18
FAUCET Score

CVE-2009-1390 describes a vulnerability in Mutt 1.5.19 when linked with OpenSSL or GnuTLS, where it fails to properly verify the entire TLS certificate chain, accepting connections if only one certificate in the chain is trusted. This flaw allows remote attackers to conduct man-in-the-middle (MitM) attacks to spoof trusted servers. The vulnerability has a CVSS score of 6.8 (Medium), indicating a network-based attack with medium complexity, potentially leading to partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.5.19CPE matchmatch criteria
cpe:2.3:a:mutt:mutt:1.5.19:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.92%
Probability of exploitation in next 30 days
EPSS Percentile
77.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0192 is in the 60th percentile among its peer group of 19,956 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2009-1390Moderate

Mutt 1.5.19 SSL chain verification flaw

May 27, 2009

References

dev.mutt.org / hg/mutt/rev/64bf199c8d8a
ExploitPatch
dev.mutt.org / hg/mutt/rev/8f11dd00c770
Exploit
exchange.xforce.ibmcloud.com / vulnerabilities/51068
redhat.com / archives/fedora-package-announce/2009-June/msg00715.html
openwall.com / lists/oss-security/2009/06/10/2
Patch
securityfocus.com / bid/35288
Patch