CVE-2016-10009

HIGHEPSS 98th pctl

7.3

CVSS v3

Description

Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4 allows remote attackers to execute arbitrary local PKCS#11 modules by leveraging control over a forwarded agent-socket.

CWE-426

How to fix

Remediation Available

opensshDebian

Fixed in:1:7.4p1-1CVE-2016-10009

opensshUbuntu

Fixed in:1:6.6p1-2ubuntu2.10USN-3538-1

Fixed in:1:7.2p2-4ubuntu2.4USN-3538-1

openssh-serverUbuntu

Fixed in:1:6.6p1-2ubuntu2.10USN-3538-1

Fixed in:1:7.2p2-4ubuntu2.4USN-3538-1

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

37.43%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Related Vulnerabilities

Other CWE-426 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-0096	High	9.3	71%	-	-
CVE-2016-0016	High	7.8	30%	-	-
CVE-2012-1854	High	7.8	21%	KEV	-
CVE-2018-12589	High	7.8	20%	-	-
CVE-2016-5330	High	7.8	18%	-	Fix
CVE-2022-22047	High	7.8	17%	KEV	Fix

Common questions

How do I fix CVE-2016-10009?

Published advisories record a fix for 3 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-2016-10009 being actively exploited?

Not that we know of. CVE-2016-10009 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 37.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 98% of all scored CVEs.

How severe is CVE-2016-10009?

CVE-2016-10009 has a CVSS v3 base score of 7.3, rated high. 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-2016-10009 affect?

Published advisories record a fix for openssh (Debian), openssh (Ubuntu), openssh-server (Ubuntu). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2016-10009

Markdown

[![CVE-2016-10009](https://tridentstack.com/cve/badge/CVE-2016-10009.svg)](https://tridentstack.com/cve/CVE-2016-10009)

HTML

<a href="https://tridentstack.com/cve/CVE-2016-10009"><img src="https://tridentstack.com/cve/badge/CVE-2016-10009.svg" alt="CVE-2016-10009"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

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 2026-05-29.