Microsoft Windows Error Reporting (WER) Privilege Escalation Vulnerability (CVE-2019-0863)
Severity: high · Patch status: patched · Since 2021-11-03 · CVE-2019-0863
Microsoft Windows Error Reporting (WER) contains a privilege escalation vulnerability due to the way it handles files, allowing for code execution in kernel mode. CISA added CVE-2019-0863 to its Known Exploited Vulnerabilities catalog on Nov 3, 2021, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by May 3, 2022 (BOD 22-01); treat that as the outer limit.
Sources
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