CVE-2020-7046

lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles truncated UTF-8 data in command parameters, as demonstrated by the…

High · published February 12, 2020

Patch now

High probability of exploitation

CVSS calls it high at 7.5. It sits in the 98.9th percentile for exploit probability.

CVSS v3.0
7.5
EPSS
51%
Percentile
98.9
In the wild
Unconfirmed
What it is

lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles truncated UTF-8 data in command parameters, as demonstrated by the unauthenticated triggering of a submission-login infinite loop.

The record
Technical detail
CVSS v3.0
7.5 · HIGH
Vector
CVSS:3.0/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N
CVSS v4.0
Not supplied
EPSS
0.51264 · 98.9th percentile
Published
2020-02-12T16:40Z
EPSS history
Timeline
  • 12 FEB 16:40Z
    lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles truncated UTF-8 data in command parameters, as demonstrated by the…
    cvelistv5