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HIGH

CVE-2020-12674

CVSS v3

7.5

HIGH

EPSS Score

6.2 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2020-12674 Red Hat Product Security333 products fixed

    dovecot: Crash due to assert in RPA implementation

  • RHSA-2020:3736 Red Hat Product Security68 products fixed

    Red Hat Security Advisory: dovecot security update

  • RHSA-2020:3735 Red Hat Product Security17 products fixed

    Red Hat Security Advisory: dovecot security update

  • RHSA-2020:3713 Red Hat Product Security68 products fixed

    Red Hat Security Advisory: dovecot security update

  • RHSA-2020:3617 Red Hat Product Security45 products fixed

    Red Hat Security Advisory: dovecot security update

Full record on NVD

Description

In Dovecot before 2.3.11.3, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled.

Technical details

Published
2020-08-12

Frequently asked questions

What is CVE-2020-12674?

In Dovecot before 2.3.11.3, sending a specially formatted RPA request will crash the auth service because a length of zero is mishandled.

Is CVE-2020-12674 actively exploited?

Active exploitation of CVE-2020-12674 has not been confirmed. Its EPSS score was 6.2% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-12674?

CVE-2020-12674 has a CVSS v3 base score of 7.5 (HIGH severity).

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