CVE-2011-3372
imap/nntpd.c in the NNTP server (nntpd) for Cyrus IMAPd 2.4.x before 2.4.12 allows remote attackers to bypass authentication by sending an AUTHINFO USER command without sending an additional AUTHINFO PASS command.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
imap/nntpd.c in the NNTP server (nntpd) for Cyrus IMAPd 2.4.x before 2.4.12 allows remote attackers to bypass authentication by sending an AUTHINFO USER command without sending an additional AUTHINFO PASS command.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 3.29% probability · 88th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-287
- Affected
- cyrus/imapd
- Source
- secalert@redhat.com
EPSS 3.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://cyrusimap.org/mediawiki/index.php/Latest_Updates
- http://git.cyrusimap.org/cyrus-imapd/commit/?id=77903669e04c9788460561dd0560b9c916519594
- http://secunia.com/advisories/46093Vendor Advisory
- http://secunia.com/secunia_research/2011-68Vendor Advisory
- http://securitytracker.com/id?1026363
- http://www.debian.org/security/2011/dsa-2318
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:149
- http://www.redhat.com/support/errata/RHSA-2011-1508.html
- https://bugzilla.redhat.com/show_bug.cgi?id=740822
- http://cyrusimap.org/mediawiki/index.php/Latest_Updates
- http://git.cyrusimap.org/cyrus-imapd/commit/?id=77903669e04c9788460561dd0560b9c916519594
- http://secunia.com/advisories/46093Vendor Advisory
- http://secunia.com/secunia_research/2011-68Vendor Advisory
- http://securitytracker.com/id?1026363
- http://www.debian.org/security/2011/dsa-2318
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:149
- http://www.redhat.com/support/errata/RHSA-2011-1508.html
- https://bugzilla.redhat.com/show_bug.cgi?id=740822
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.