PT-2025-33896 · Microsoft+1 · Knack+1

Sajeeb Lohani · Published 2025-08-20 · Updated 2025-08-21 · CVE-2025-54363

Positive Technologies (AI Summary)

CVSS v4.0

6.9

Medium

Base vector

AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions: Microsoft Knack version 0.12.0

Description: The software is susceptible to a Regular expression Denial of Service (ReDoS) issue within the knack.introspection module.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-1333

Related Identifiers

CVE-2025-54363

GHSA-6FXP-P9MG-Q64W

Affected Products

Debian

Knack

References · 15

• https://osv.dev/vulnerability/CVE-2025-54363 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-54363 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-54363 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-54363 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-54363 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-6fxp-p9mg-q64w · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-54363 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-54363 · Security Note
• https://github.com/microsoft/knack/issues/281 · Note
• https://github.com/microsoft/knack · Note
• https://github.com/microsoft/knack/issues/281#issuecomment-3218922941 · Note
• https://t.me/cveNotify/132965 · Telegram Post
• https://t.me/CVEtracker/30423 · Telegram Post
• https://vulncheck.com/advisories/microsoft-knack-python-package-regular-expression-dos · Note
• https://twitter.com/CVEnew/status/1958011003032973637 · Twitter Post