Is CVE-2024-55638 in the CISA KEV catalog?

No. CVE-2024-55638 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-55638?

CVE-2024-55638 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2024-55638?

CVE-2024-55638 has an EPSS score of 0.96% (57th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-55638?

Upgrade drupal to 10.3.9 or later.

CVE & CISA-KEV Catalog

CVE-2024-55638

CRITICAL

9.8

CVSS v3

NVD

Description

Deserialization of Untrusted Data vulnerability in Drupal Core allows Object Injection.This issue affects Drupal Core: from 7.0 before 7.102, from 8.0.0 before 10.2.11, from 10.3.0 before 10.3.9. Drupal core contains a chain of methods that is exploitable when an insecure deserialization vulnerability exists on the site. This so-called gadget chain presents no direct threat but is a vector that can be used to achieve remote code execution if the application deserializes untrusted data due to another vulnerability.

CWE-915 CWE-502Deserialization of Untrusted Data

How to fix

Remediation Available

drupalNVD

Affected:>= 10.3.0, < 10.3.9Fixed in:10.3.9CVE-2024-55638derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.96%probability of exploitation in 30 days

57thpercentile

Moderate risk: more likely to be exploited than 57% of all known CVEs.

References

Vendor Advisory1

drupal.org

Embed a live status badge for CVE-2024-55638

Markdown

[![CVE-2024-55638](https://tridentstack.com/cve/badge/CVE-2024-55638.svg)](https://tridentstack.com/cve/CVE-2024-55638)

HTML

<a href="https://tridentstack.com/cve/CVE-2024-55638"><img src="https://tridentstack.com/cve/badge/CVE-2024-55638.svg" alt="CVE-2024-55638"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-06-02.