Servers and applications
CVE-2015-3420
The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.
- Severity
- Medium 5.9
- Published
- 19 Sept 2017
- Last changed
- 17 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 2.8% in the next 30 daysHigher than 86% of CVEs. EPSS by FIRST, 11 Nov 2026
- Attack
- Over the network · Only under certain conditions · No login needed · No user action needed
- Attacker can
- Take it down
- CVSS vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
DovecotServers and applications · cpe:a:dovecot:dovecot |
|