CVE-2019-0863

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2019-0863 is an elevation of privilege vulnerability in the way the Windows Error Reporting (WER) component handles files. It affects Microsoft Windows systems and carries a CVSS 3.1 base score of 7.8 reflecting local attack vector, low attack complexity, and low privileges required.

A local attacker with existing low-privileged access can exploit the flaw without user interaction to obtain high impact on confidentiality, integrity, and availability, effectively escalating to full control of the system.

Microsoft security guidance published via the MSRC advisory portal addresses remediation steps, while the vulnerability appears in the CISA catalog of known exploited vulnerabilities.

Publicly available exploit code, including the proof-of-concept released as Angry Polar Bear 2, demonstrates local privilege escalation against WER on affected Windows versions.