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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2019-0808

Microsoft Win32k Privilege Escalation Vulnerability

KEVEXPLOITHIGH 7.8EPSS 53.0%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0797.

CVSS 3.1
7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
53.02% probability · 99th percentile
Public exploits
1 in Exploit-DB · first 26 March 2019
CISA KEV
Listed 3 November 2021 · due 3 May 2022
Affected
microsoft/windows 7 · microsoft/windows server 2008
Source
secure@microsoft.com
EPSS trend
0%28%55%27 October 2026: 53.02%27 October 202627 October 2026

EPSS 53.0% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2019-0808

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-46604source ↗Microsoft Windows 7/2008 - 'Win32k' Denial of Service (PoC)windows · ze0rdos26 March 2019no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.