CVE-2025-61984

ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)

CVSS v3.1

3.6 LOWCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS

0.27% chance of exploitation in the next 30 days, 20th percentile

Published

2025-10-06

Updated

2026-07-14

Proof-of-concept exploits (2)

• dgl/cve-2025-61984-poc
• flyskyfire/cve-2025-61984-poc

References

• CVE Record
• NVD entry

Related

• CVE-2021-25743
• CVE-2022-44702
• CVE-2022-45063
• CVE-2022-45872
• CVE-2022-46387
• CVE-2025-6197