CVE-2025-47203 Affecting dropbear package, versions <2020.81-3+deb11u3
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-DEBIAN11-DROPBEAR-10062620
- published8 May 2025
- disclosed7 May 2025
Introduced: 7 May 2025
CVE-2025-47203 (opens in a new tab)How to fix?
Upgrade Debian:11 dropbear to version 2020.81-3+deb11u3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream dropbear package and not the dropbear package as distributed by Debian.
See How to fix? for Debian:11 relevant fixed versions and status.
dbclient in Dropbear SSH before 2025.88 allows command injection via an untrusted hostname argument, because a shell is used.
References
- https://security-tracker.debian.org/tracker/CVE-2025-47203
- https://github.com/mkj/dropbear/blob/master/CHANGES
- https://github.com/mkj/dropbear/blob/master/src/cli-main.c
- http://www.openwall.com/lists/oss-security/2025/05/09/4
- http://www.openwall.com/lists/oss-security/2025/05/12/6
- http://www.openwall.com/lists/oss-security/2025/05/13/1
- http://www.openwall.com/lists/oss-security/2025/05/13/3
- http://www.openwall.com/lists/oss-security/2025/05/13/10
- https://lists.debian.org/debian-lts-announce/2025/05/msg00020.html