CVE-2025-61984

LOW

3.6

CVSS v3

Description

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.)

CWE-159

How to fix

Remediation Available

opensshDebian

Fixed in:1:8.4p1-5+deb11u7CVE-2025-61984

Fixed in:1:9.2p1-2+deb12u8CVE-2025-61984

Fixed in:1:10.0p1-7+deb13u1CVE-2025-61984

Fixed in:1:10.1p1-1CVE-2025-61984

opensshRed Hat / RHEL

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

opensshRocky

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

openssh-askpassRed Hat / RHEL

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

openssh-askpassRocky

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

openssh-askpass-debuginfoRocky

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

openssh-askpass-debuginfoRed Hat / RHEL

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

openssh-cavsRocky

Fixed in:0:8.0p1-27.el8_10RHSA-2025:23481

openssh-cavsRed Hat / RHEL

Fixed in:0:8.0p1-27.el8_10RHSA-2025:23481

openssh-cavs-debuginfoRocky

Fixed in:0:8.0p1-27.el8_10RHSA-2025:23481

openssh-cavs-debuginfoRed Hat / RHEL

Fixed in:0:8.0p1-27.el8_10RHSA-2025:23481

openssh-clientsRocky

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

openssh-clientsRed Hat / RHEL

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

openssh-clients-debuginfoRocky

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

openssh-clients-debuginfoRed Hat / RHEL

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

openssh-debuginfoRed Hat / RHEL

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

openssh-debuginfoRocky

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

openssh-debugsourceRocky

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

openssh-debugsourceRed Hat / RHEL

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

openssh-keycatRocky

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

openssh-keycatRed Hat / RHEL

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

openssh-keycat-debuginfoRocky

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

openssh-keycat-debuginfoRed Hat / RHEL

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

openssh-keysignRed Hat / RHEL

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

openssh-keysignRocky

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

openssh-keysign-debuginfoRocky

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

openssh-keysign-debuginfoRed Hat / RHEL

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

Fixed in:0:9.9p1-7.el10_0.1RHSA-2026:1678

Fixed in:0:9.9p1-12.el10_1RHSA-2025:23479

openssh-ldapRocky

Fixed in:0:8.0p1-27.el8_10RHSA-2025:23481

openssh-ldapRed Hat / RHEL

Fixed in:0:8.0p1-27.el8_10RHSA-2025:23481

openssh-ldap-debuginfoRocky

Fixed in:0:8.0p1-27.el8_10RHSA-2025:23481

This vulnerability affects an unusually large number of packages. The highest-confidence fixes are shown above; the full list is longer. Check the referenced advisories for complete coverage.

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.27%probability of exploitation in 30 days

19thpercentile

Low risk: more likely to be exploited than 19% of all known CVEs.

References

Other references9

Related Vulnerabilities

Other CWE-159 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2021-21707	Medium	5.3	26%	-	Fix
CVE-2019-9505	Critical	9.8	3.5%	-	-
CVE-2020-1653	High	7.5	1.6%	-	-
CVE-2020-1648	High	7.5	1.3%	-	-
CVE-2020-1646	High	7.5	1.0%	-	-
CVE-2020-29022	Medium	5.3	0.8%	-	Fix

Common questions

How do I fix CVE-2025-61984?

Published advisories record a fix for 62 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2025-61984 being actively exploited?

Not that we know of. CVE-2025-61984 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.27% is the estimated probability that it will be exploited in the next 30 days. That is higher than 19% of all scored CVEs.

How severe is CVE-2025-61984?

CVE-2025-61984 has a CVSS v3 base score of 3.6, rated low. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2025-61984 affect?

Published advisories record a fix for openssh (Debian), openssh (Red Hat / RHEL), openssh (Rocky), openssh-askpass (Red Hat / RHEL), and 58 more. Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-14.