Microsoft Edge Memory Corruption Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-03-28
• EPSS: 80% chance of exploitation in the next 30 days (higher than 100% of CVEs)

[ Description ]Official description

The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-7200, CVE-2016-7202, CVE-2016-7203, CVE-2016-7208, CVE-2016-7240, CVE-2016-7242, and CVE-2016-7243.

CISA: The Chakra JavaScript scripting engine in Microsoft Edge allows remote attackers to execute remote code or cause a denial of service (memory corruption) via a crafted web site.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 18 Apr 2022): Apply updates per vendor instructions.

• Patch on docs.microsoft.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ References ]References

• packetstormsecurity.com/files/140382/Microsoft-Edge-chakra.dll-Information-Leak-Type-Co…Third Party AdvisoryVDB Entry
• www.securityfocus.com/bid/94038Broken LinkThird Party AdvisoryVDB Entry
• www.securitytracker.com/id/1037245Broken LinkThird Party AdvisoryVDB Entry
• docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-129PatchVendor Advisory
• github.com/theori-io/chakra-2016-11ExploitThird Party Advisory
• www.exploit-db.com/exploits/40784ExploitThird Party AdvisoryVDB Entry
• www.exploit-db.com/exploits/40990ExploitThird Party AdvisoryVDB Entry
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource