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CVE Vulnerability Details :
CVE-2025-61984
PUBLISHED
More InfoOfficial Page
Assigner-mitre
Assigner Org ID-8254265b-2729-46b6-b9e3-3dfca2d5bfca
View Known Exploited Vulnerability (KEV) details
Published At-06 Oct, 2025 | 00:00
Updated At-26 Feb, 2026 | 17:48
Rejected At-
▼CVE Numbering Authority (CNA)

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.)

Affected Products
Vendor
OpenBSDOpenBSD
Product
OpenSSH
Default Status
unaffected
Versions
Affected
  • From 0 before 10.1 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-159CWE-159 Improper Handling of Invalid Use of Special Elements
Type: CWE
CWE ID: CWE-159
Description: CWE-159 Improper Handling of Invalid Use of Special Elements
Metrics
VersionBase scoreBase severityVector
3.13.6LOW
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Version: 3.1
Base score: 3.6
Base severity: LOW
Vector:
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.openwall.com/lists/oss-security/2025/10/06/1
N/A
https://marc.info/?l=openssh-unix-dev&m=175974522032149&w=2
N/A
https://www.openssh.com/releasenotes.html#10.1p1
N/A
Hyperlink: https://www.openwall.com/lists/oss-security/2025/10/06/1
Resource: N/A
Hyperlink: https://marc.info/?l=openssh-unix-dev&m=175974522032149&w=2
Resource: N/A
Hyperlink: https://www.openssh.com/releasenotes.html#10.1p1
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984
exploit
Hyperlink: https://dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984
Resource:
exploit
2. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
http://www.openwall.com/lists/oss-security/2025/10/07/1
N/A
http://www.openwall.com/lists/oss-security/2025/10/12/1
N/A
https://www.vicarius.io/vsociety/posts/cve-2025-61984-detection-script-remote-code-execution-vulnerability-affecting-openssh
N/A
https://www.vicarius.io/vsociety/posts/cve-2025-61984-mitigation-script-remote-code-execution-vulnerability-affecting-openssh
N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/10/07/1
Resource: N/A
Hyperlink: http://www.openwall.com/lists/oss-security/2025/10/12/1
Resource: N/A
Hyperlink: https://www.vicarius.io/vsociety/posts/cve-2025-61984-detection-script-remote-code-execution-vulnerability-affecting-openssh
Resource: N/A
Hyperlink: https://www.vicarius.io/vsociety/posts/cve-2025-61984-mitigation-script-remote-code-execution-vulnerability-affecting-openssh
Resource: N/A
Details not found