CVE-2022-0538

Jenkins vulnerability

CVSS

7.5

EPSS

3.9%

EPSS pct

89th

Exploited

No known

Jenkins 2.333 and earlier, LTS 2.319.2 and earlier defines custom XStream converters that have not been updated to apply the protections for the vulnerability CVE-2021-43859 and allow unconstrained resource usage.

Affected vendor

Jenkins

Affected product

Jenkins

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-502 — Deserialization of Untrusted Data

Published

2022-02-09

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 3.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2022-0538

Confirm whether Jenkins Jenkins is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2022-0538.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-0538

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