CVE-2015-0071
Microsoft Internet Explorer ASLR Bypass Vulnerability
Microsoft Internet Explorer
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."
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 25 May 2022. US federal agencies were required to remediate it by 15 June 2022.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 33.6%, which is higher than 98.4% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Frequently asked questions
Is CVE-2015-0071 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2015-0071.
What does CVE-2015-0071 affect?
CVE-2015-0071 affects Microsoft Internet Explorer. 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."
How severe is CVE-2015-0071?
CVE-2015-0071 is rated MEDIUM with a CVSS base score of 6.5. EPSS puts the probability of exploitation in the next 30 days at 33.6%, higher than 98.4% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 15 June 2022.
How should organisations respond to CVE-2015-0071?
Apply the vendor patch for Microsoft Internet Explorer as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.