CVE-2021-32837

Mechanize vulnerability

CVSS

7.5

EPSS

28.7%

EPSS pct

98th

Exploited

No known

mechanize, a library for automatically interacting with HTTP web servers, contains a regular expression that is vulnerable to regular expression denial of service (ReDoS) prior to version 0.4.6. If a web server responds in a malicious way, then mechanize could crash. Version 0.4.6 has a patch for the issue.

Affected vendor

Mechanize Project

Affected product

Mechanize

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type (CWE)

CWE-1333 — Inefficient Regular Expression Complexity

Published

2023-01-17

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 28.7% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2021-32837

Confirm whether Mechanize Project Mechanize is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2021-32837.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2021-32837

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