CVE-2024-43426

Q: How do I fix CVE-2024-43426?

Upgrade moodle to 4.4.2 or later.

Q: Is CVE-2024-43426 being actively exploited?

Not that we know of. CVE-2024-43426 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.60% is the estimated probability that it will be exploited in the next 30 days. That is higher than 45% of all scored CVEs.

Q: How severe is CVE-2024-43426?

CVE-2024-43426 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2024-43426 affect?

Published advisories record a fix for moodle (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGH

7.5

CVSS v3

NVD

Description

A flaw was found in pdfTeX. Insufficient sanitizing in the TeX notation filter resulted in an arbitrary file read risk on sites where pdfTeX is available, such as those with TeX Live installed.

CWE-1287Improper Validation of Specified Type of Input

How to fix

Remediation Available

moodleNVD

Affected:>= 4.4.0, < 4.4.2Fixed in:4.4.2CVE-2024-43426derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.60%probability of exploitation in 30 days

45thpercentile

Moderate risk: more likely to be exploited than 45% of all known CVEs.

References

Vendor Advisory1

moodle.org

Other references1

bugzilla.redhat.com

Related Vulnerabilities

Other CWE-1287 (Improper Validation of Specified Type of Input) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-4879	Critical	9.8	100%	KEV	-
CVE-2022-31007	Medium	4.9	26%	-	Fix
CVE-2024-6298	Critical	10.0	19%	-	-
CVE-2026-25639	High	7.5	2.5%	-	Fix
CVE-2021-43802	Critical	9.9	2.0%	-	Fix
CVE-2026-5946	High	7.5	1.9%	-	Fix

Common questions

How do I fix CVE-2024-43426?

Upgrade moodle to 4.4.2 or later.

Is CVE-2024-43426 being actively exploited?

Not that we know of. CVE-2024-43426 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.60% is the estimated probability that it will be exploited in the next 30 days. That is higher than 45% of all scored CVEs.

How severe is CVE-2024-43426?

CVE-2024-43426 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2024-43426 affect?

Published advisories record a fix for moodle (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2024-43426

Markdown

[![CVE-2024-43426](https://tridentstack.com/cve/badge/CVE-2024-43426.svg)](https://tridentstack.com/cve/CVE-2024-43426)

HTML

<a href="https://tridentstack.com/cve/CVE-2024-43426"><img src="https://tridentstack.com/cve/badge/CVE-2024-43426.svg" alt="CVE-2024-43426"></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.

See how it works Start freeThis CVE lookup is free and always will be.

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 2025-08-05.