What is CVE-2014-6354?

CVE-2014-6354 is a high-severity vulnerability in Microsoft Internet Explorer, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2017-06-27.

How severe is CVE-2014-6354?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Microsoft Internet Explorer

CVE-2014-6354

Internet Explorer 6, Internet Explorer 7, Internet Explorer 8, Internet Explorer 9, Internet Explorer 10, and Internet Explorer 11 allows remote attackers to execute arbitrary code.

Vulnerability class: Buffer Overflow

Published 2017-06-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.128 (96.2th percentile), scored 2026-09-29.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.128 · newest: 0.128 · change: 0.000

Affected products

Microsoft Internet Explorer — versions 6, 7, 8

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

www.zerodayinitiative.com/advisories/ZDI-15-032 (VDB Entry, Third Party Advisory)
docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-051 (vendor-advisory)

Frequently asked questions

What is CVE-2014-6354?: CVE-2014-6354 is a high-severity vulnerability in Microsoft Internet Explorer, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2017-06-27.
How severe is CVE-2014-6354?: High severity. CVSS v3 base score is 7.5 out of 10.