VDB

CVE-2020-10957

CVE-2020-10957 PUBLISHED CVSS 7.5 HIGH

Reported by mitre · Published May 18, 2020

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.

Fixed versions

Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.

PackageEcosystemFixed in
dovecotArch Linux2.3.10.1-1
dovecotdovecot2.3.10.1

Risk scores

CVSS 3.0
7.5
CVSS:3.0/AC:L/AV:N/A:H/C:N/I:N/PR:N/S:U/UI:N

Affected products

VendorProductVersions
n/an/an/a
archdovecot0
n/an/a*
alpinedovecot0

Timeline

  • May 18, 2020 PoC Published
  • May 18, 2020 CVE Published
  • Apr 14, 2021 EPSS Score (30 in total, the first dated here)
  • Sep 8, 2025 CVE Updated
  • Mar 6, 2026 Distribution Patch (4 in total, the first dated here)
  • Mar 6, 2026 Security Advisory (9 in total, the first dated here)
  • Sep 6, 2026 Coalition ESS Score

Query this with the API

The same record, from the CLI:

vulnetix vdb vuln CVE-2020-10957
vulnetix vdb fixes CVE-2020-10957

Or with curl, using the org id and key from your account page:

curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2020-10957/fixes/registry"

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References

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