CVE-2021-34527 · netVigilance record NV21-0265
Microsoft Windows Print Spooler Remote Code Execution
past due ransomware
What to do
Apply updates per vendor instructions.
CISA deadline 2022-05-03 · passed 4 years 4 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
Microsoft Windows Print Spooler contains an unspecified vulnerability due to the Windows Print Spooler service improperly performing privileged file operations. Successful exploitation allows an attacker to perform remote code execution with SYSTEM privileges. The vulnerability is also known under the moniker of PrintNightmare.
Who is affected
Microsoft Windows. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-269.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 4 years 4 months ago
Sources
- NVD entry for CVE-2021-34527 nvd.nist.gov/vuln/detail/CVE-2021-34527
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- cisa.gov www.cisa.gov/news-events/directives/ed-21-04-mitigate-windows-print-spooler-service-vulnerability
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2021-34527