What is CVE-2023-39143?

CVE-2023-39143 is a critical-severity vulnerability in Microsoft Windows, classified under Path Traversal. CVSS score: 9.8/10. Published 2023-08-04.

How severe is CVE-2023-39143?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-39143 known to be exploited?

8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Microsoft Windows

CVE-2023-39143

PaperCut NG and PaperCut MF before 22.1.3 on Windows allow path traversal, enabling attackers to upload, read, or delete arbitrary files. This leads to remote code execution when external device integration is enabled (a very common config…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.787 (99.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

References

cve@mitre.org (Exploit, Third Party Advisory)
cve@mitre.org (Vendor Advisory)

Frequently asked questions

What is CVE-2023-39143?: CVE-2023-39143 is a critical-severity vulnerability in Microsoft Windows, classified under Path Traversal. CVSS score: 9.8/10. Published 2023-08-04.
How severe is CVE-2023-39143?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-39143 known to be exploited?: 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.