Is CVE-2015-0071 being actively exploited?

Yes. CVE-2015-0071 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on May 25, 2022.

What is the CVSS score for CVE-2015-0071?

CVE-2015-0071 has a CVSS 3.1 base score of 6.5 (MEDIUM).

CVE-2015-0071

MEDIUM · CVSS 6.5CISA KEV: actively exploitedEPSS 33.6%EU EUVD: exploited

Microsoft Internet Explorer 9 through 11 allows remote attackers to bypass the ASLR protection mechanism via a crafted web site, aka "Internet Explorer ASLR Bypass Vulnerability."

Key facts

CVSS score: 6.5 (v3.1)
Severity: MEDIUM
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS score: 33.6% (98th percentile)
In CISA KEV: Yes, added May 25, 2022
In EU EUVD: Yes (EUVD-2015-0109)
Published: February 11, 2015
NVD last modified: June 17, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Microsoft Internet Explorer ASLR Bypass Vulnerability

Added to the KEV catalog on May 25, 2022; federal remediation due June 15, 2022.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2015-0109 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on October 22, 2025.

View on the EU Vulnerability Database

Affected products

microsoft / internet explorer
microsoft / internet explorer
microsoft / internet explorer
microsoft / windows 7
microsoft / windows 8
microsoft / windows 8.1
microsoft / windows rt
microsoft / windows rt 8.1
microsoft / windows server 2008
microsoft / windows server 2008
microsoft / windows server 2012
microsoft / windows server 2012
microsoft / windows vista

References

http://www.securityfocus.com/bid/72455(Broken Link, Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id/1031723(Broken Link, Third Party Advisory, VDB Entry)
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-009(Patch, Vendor Advisory)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2015-0071(US Government Resource)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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