What’s Vulnerable › Vulnerabilities

CVE-2025-47203

• Severity: medium (CVSS 4.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-07 · updated 2026-06-17
• Weakness: CWE-78

Description

dbclient in Dropbear SSH before 2025.88 allows command injection via an untrusted hostname argument, because a shell is used.

Affected products

• [UNKNOWN] dropbear: before 2025.88 — fixed in 2025.88

How to fix

Upgrade to a fixed version: [UNKNOWN] dropbear 2025.88. Check the vendor advisory for mitigations.

References

• 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/2025/05/13/10
• http://www.openwall.com/lists/oss-security/2025/05/13/3
• https://lists.debian.org/debian-lts-announce/2025/05/msg00020.html

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