Improper Certificate Validation Affecting evolution-ews package, versions <3.30.5-1.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN14-EVOLUTIONEWS-11741271
- published10 Aug 2025
- disclosed1 Aug 2019
Introduced: 1 Aug 2019
CVE-2019-3890 (opens in a new tab)How to fix?
Upgrade Debian:14 evolution-ews to version 3.30.5-1.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream evolution-ews package and not the evolution-ews package as distributed by Debian.
See How to fix? for Debian:14 relevant fixed versions and status.
It was discovered evolution-ews before 3.31.3 does not check the validity of SSL certificates. An attacker could abuse this flaw to get confidential information by tricking the user into connecting to a fake server without the user noticing the difference.