CVE-2020-10957
CVSS v3
7.5
HIGH
EPSS Score
7.2 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.
Technical details
- Published
- 2020-05-18
Frequently asked questions
What is CVE-2020-10957?
In Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.
Is CVE-2020-10957 actively exploited?
Active exploitation of CVE-2020-10957 has not been confirmed. Its EPSS score was 7.2% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2020-10957?
CVE-2020-10957 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2020-10957 affecting your environment?
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