CVE-2023-27351 · netVigilance record NV26-0086
PaperCut NG/MF Improper Authentication
past due ransomware
What to do
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA deadline 2026-05-04 · passed 4 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
PaperCut NG/MF contains an improper authentication vulnerability that could allow remote attackers to bypass authentication on affected installations via the SecurityRequestFilter class.
Who is affected
PaperCut NG/MF. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-287.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 4 months ago
Sources
- NVD entry for CVE-2023-27351 nvd.nist.gov/vuln/detail/CVE-2023-27351
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- papercut.com www.papercut.com/kb/Main/PO-1216-and-PO-1219
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2023-27351