How severe is CVE-2015-8156?

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

Vulnerability in Symantec Endpoint Encryption

CVE-2015-8156

Unquoted Windows search path vulnerability in EEDService in Symantec Endpoint Encryption (SEE) 11.x before 11.1.1 allows local users to gain privileges via a Trojan horse executable file in the %SYSTEMDRIVE% directory, as demonstrated by program.exe.

Published 2016-05-14 · last modified 2026-06-17.

CVSS v3 metric

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

EPSS exploit prediction

EPSS: 0.003 (19.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Symantec Endpoint Encryption — versions 11.0, 11.0.0, 11.0.1

References

www.symantec.com/security_response/securityupdates/detail.jsp (Vendor Advisory)
www.securityfocus.com/bid/90050 (vdb-entry)

Frequently asked questions

What is CVE-2015-8156?: CVE-2015-8156 is a high-severity vulnerability in Symantec Endpoint Encryption. CVSS score: 7.8/10. Published 2016-05-14.
How severe is CVE-2015-8156?: High severity. CVSS v3 base score is 7.8 out of 10.