How severe is CVE-2016-4902?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Japan Agency For Local Authority Information Systems The Public Certification Service Individuals "The Jpki User's Software"

CVE-2016-4902

Untrusted search path vulnerability in The Public Certification Service for Individuals "The JPKI user's software (for Windows 7 and later)" Ver3.0.1 and earlier, The Public Certification Service for Individuals "The JPKI user's software (for Windows Vista)" Ver3.0.1 and earlier and The Public Certification Service for Individuals "The JPKI user's software" Ver2.6 and earlier allows remote attackers to gain privileges via a Trojan horse DLL in an unspecified directory.

Published 2017-06-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (78.0th percentile), scored 2026-09-28.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-426 — Untrusted Search Path

References

jvn.jp/en/jp/JVN91002412/index.html (VDB Entry, Third Party Advisory, third-party-advisory)
www.securityfocus.com/bid/94087 (VDB Entry, Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2016-4902?: CVE-2016-4902 is a high-severity vulnerability in Japan Agency For Local Authority Information Systems The Public Certification Service Individuals "The Jpki User's Software", classified under Untrusted Search Path. CVSS score: 7.8/10. Published 2017-06-09.
How severe is CVE-2016-4902?: High severity. CVSS v3 base score is 7.8 out of 10.