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CVE-2020-0878: Microsoft Edge and Internet Explorer Memory Corruption Vulnerability

criticalknown exploitedCVE-2020-0878
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Microsoft Edge and Internet Explorer contain a memory corruption vulnerability that allows attackers to execute code in the context of the current user.

CSIRTS triage

vendor: Microsoftproduct: Edge and Internet ExplorerMemory corruptionRemote code execution
What
Microsoft Edge and Internet Explorer contain a memory corruption vulnerability that allows attackers to execute code in the context of the current user.
Who is affected
Users of Microsoft Edge and Internet Explorer are affected.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update to the latest versions of Edge and Internet Explorer.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-0878

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2020-0878coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Edge and

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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