cve.bz

CVE-2019-16791

5.9 mediumEPSS 0.9%

Medium (5.9) in postfix-mta-sts-resolver project postfix-mta-sts-resolver. EPSS 0.9% chance of exploitation in the next 30 days. Fixed in postfix-mta-sts-resolver 0.5.1.

In postfix-mta-sts-resolver before 0.5.1, All users can receive incorrect response from daemon under rare conditions, rendering downgrade of effective STS policy.

Severity

CVSS 3.1

5.9 medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE
CWE-757
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-h92m-42h4-82f6PyPIpostfix-mta-sts-resolver<0.5.10.5.1
PYSEC-2020-174PyPIpostfix-mta-sts-resolver<0.5.10.5.1

References

Check your stackJSON