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 unauthenticated triggering of a submission-login
02 Description
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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 51.26% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 98.8% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2020-02-12 16:40Z6 YR AGO
- Last updated
- 2024-08-04 09:18Z2 YR AGO
- Reserved
- 2020-01-14
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.0/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N
- Weaknesses
- Data version
- 5.1
- Document digest
- 308a90c6725687da2805720bdbefa957dbd020ae255a272cf0a58af19d19cbb5
05 Affected products
06 References
- dovecot.orghttps://dovecot.org/security
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2020/02/12/1
- dovecot.orghttps://dovecot.org/pipermail/dovecot-news/2020-February/000431.html
- lists.fedoraproject.orgFEDORA-2020-10a58fda28https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/
- lists.fedoraproject.orgFEDORA-2020-0e6a67af5ahttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/
07 Fixed in
Arch Linux
- dovecot Fixed in 2.3.9.3-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.