CVE-2016-6167

Exp

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.

Published: 2017-01-30 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-6167 is rated Exploit Available (57.1/100): CVSS High severity, with low exploitation likelihood (EPSS 0.12%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2016-6167

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2016-6167

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-09-02 0.22% 0.12% -0.10%
2 2025-03-30 0.40% 0.22% -0.18%
3 2025-03-29 — 0.40% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-6167

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
4.4 2.0 MEDIUM
AV:L/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.4 6.4 [email protected]

Weakness enumeration for CVE-2016-6167

OS Trackers for CVE-2016-6167

vendor priority summary link
debian unimportant CVE-2016-6167 unimportant priority: Debian including 1 source packages (putty), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-6167
suse medium — https://www.suse.com/security/cve/CVE-2016-6167/
ubuntu negligible CVE-2016-6167 negligible priority: Ubuntu including 1 source packages (putty), 5 status rows across 5 suites (precise, trusty, upstream, xenial, yakkety): not-affected 4, DNE 1. https://ubuntu.com/security/CVE-2016-6167

Affected software / configurations for CVE-2016-6167

Vendor Product Version Raw CPE
putty putty 0.67 cpe:2.3:a:putty:putty:0.67:beta:*:*:*:*:*:*

References for CVE-2016-6167

URL Tags
http://www.securityfocus.com/archive/1/538848/100/0/threaded Broken Link Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1036236 Broken Link Third Party Advisory VDB Entry
https://packetstormsecurity.com/files/137742/Putty-Beta-0.67-DLL-Hijacking.html Exploit Third Party Advisory VDB Entry
cvelogic Threat Intelligence