How severe is CVE-2016-6167?

CVE-2016-6167 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-6167 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6167?

CVE-2016-6167 affects Putty. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-6167?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-6167 published?

CVE-2016-6167 was published on 2017-01-30 and last updated on 2026-06-17.

CVE-2016-6167

CVE-2016-6167 is a high-severity vulnerability in Putty with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-426.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.4
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-426
Affected product: Putty
Published: 2017-01-30
Last modified: 2026-06-17

Description

Multiple untrusted search path vulnerabilities in Putty beta 0.67 allow local users to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse (1) UxTheme.dll or (2) ntmarta.dll file in the current working directory.

Frequently asked questions

What is CVE-2016-6167?: Multiple untrusted search path vulnerabilities in Putty beta 0.67 allow local users to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse (1) UxTheme.dll or (2) ntmarta.dll file in the current working directory.
How severe is CVE-2016-6167?: CVE-2016-6167 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-6167 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6167?: CVE-2016-6167 affects Putty. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-6167?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-6167 published?: CVE-2016-6167 was published on 2017-01-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:putty:putty:0.67:beta:*:*:*:*:*:*

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