TCPDF version <=6.6.5 is vulnerable to ReDoS (Regular Expression Denial of Service) if parsing an untrusted HTML page with a crafted color.
CVE-2024-22640
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 1.3%, top 32% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 49(Track)EG Risk 49/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation1% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 1%
- EPSS %ILE
- 69%
- KEV
- Not listed
Published
April 19, 2024
Last Modified
November 4, 2025
References (8)
- cve@mitrehttps://github.com/tecnickcom/TCPDF
- cve@mitrehttps://github.com/zunak/CVE-2024-22640
- cve@mitrehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LIB3R2WB7XPW2I4PGVMZ3VLFLRHOK4RB/
- af854a3a-2127-422b-91ae-364da2661108https://github.com/tecnickcom/TCPDF
- af854a3a-2127-422b-91ae-364da2661108https://github.com/zunak/CVE-2024-22640
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/06/msg00004.html
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LIB3R2WB7XPW2I4PGVMZ3VLFLRHOK4RB/
- af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/[email protected]/message/LIB3R2WB7XPW2I4PGVMZ3VLFLRHOK4RB/
Affected Packages
(5 across 5 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| tcpdf | 6.3.5+dfsg1-1 | 6.3.5+dfsg1-1+deb11u1 | — |
Debian:12(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| tcpdf | 6.6.2+dfsg1-1 | 6.6.2+dfsg1-1+deb12u1 | — |
Debian:13(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| tcpdf | — | 6.7.5+dfsg-1 | — |
Debian:14(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| tcpdf | — | 6.7.5+dfsg-1 | — |
Packagist(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| tecnickcom/tcpdf | 6.0.013 ... 6.7.4 (127 versions) | 6.7.5 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 5× in last 7d / 30× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 135 total refreshes for this CVE.
- 2026-08-25 13:47 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2024-22640?
When was CVE-2024-22640 disclosed?
Is CVE-2024-22640 actively exploited?
What is the CVSS score of CVE-2024-22640?
How do I remediate CVE-2024-22640?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-22640
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