CVE-2015-2502
Published: April 13, 2022
Official Description
Microsoft Internet Explorer contains a memory corruption vulnerability that allows an attacker to execute code or cause a denial-of-service (DoS).
CISA KEV Advisory
Microsoft Internet Explorer Memory Corruption Vulnerability
Microsoft Internet Explorer contains a memory corruption vulnerability that allows an attacker to execute code or cause a denial-of-service (DoS).
Apply updates per vendor instructions.
Risk Analysis
This Microsoft Internet Explorer vulnerability is a memory corruption flaw that can lead to arbitrary code execution or a denial-of-service condition. The high EPSS score indicates a notable likelihood of exploitation, and its presence in the KEV catalog confirms it has been actively exploited, making it a critical vulnerability.
This vulnerability has been actively exploited in the wild. Given it affects a web browser, it is likely remotely exploitable through crafted web content.
Users should upgrade to the latest version of Internet Explorer or switch to a modern, supported browser. Ensure all system and browser updates are applied promptly.
Technical Analysis
CVE-2015-2502 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2015-2502 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2015-2502 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1