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CVE-2024-22640

21
FAUCET Score

CVE-2024-22640 is a Regular Expression Denial of Service (ReDoS) vulnerability affecting TCPDF versions up to 6.6.5, specifically when processing untrusted HTML containing a specially crafted color. This vulnerability carries a CVSS score of 7.5 (HIGH), indicating it can be exploited remotely with low attack complexity, leading to a denial of service. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 6.7.4CPE matchmatch criteria
cpe:2.3:a:tcpdf_project:tcpdf:*:*:*:*:*:*:*:*
40CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:40:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.32%
Probability of exploitation in next 30 days
EPSS Percentile
68.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0132 is in the 48th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

composerpatch availablevia ghsa
Product: tecnickcom/tcpdfFixed in: 6.7.5

Vendor Advisories (1)

composerGHSA-mx3p-fhpw-x6rvmedium

TCPDF vulnerable to Regular Expression Denial of Service

Apr 19, 2024

References

lists.debian.org / debian-lts-announce/2025/06/msg00004.html
lists.fedoraproject.org / archives/list/[email protected]/message/LIB3R2WB7XPW2I4PGVMZ3VLFLRHOK4RB
github.com / tecnickcom/TCPDF
Product
github.com / zunak/CVE-2024-22640
ExploitThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/LIB3R2WB7XPW2I4PGVMZ3VLFLRHOK4RB
Third Party Advisory