What is CVE-2024-56522?

CVE-2024-56522 is a high-severity vulnerability in Tcpdf_project Tcpdf, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.5/10. Published 2024-12-27.

How severe is CVE-2024-56522?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2024-56522 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Tcpdf_project Tcpdf

CVE-2024-56522

An issue was discovered in TCPDF before 6.8.0. unserializeTCPDFtag uses != (aka loose comparison) and does not use a constant-time function to compare TCPDF tag hashes.

EPSS: 0.006 (43.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Tcpdf_project Tcpdf
Tecnick Tcpdf — versions 0

Weakness classification (CWE)

CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

Public proof-of-concept exploits

w4zu/Debian_

References

Frequently asked questions

What is CVE-2024-56522?: CVE-2024-56522 is a high-severity vulnerability in Tcpdf_project Tcpdf, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 7.5/10. Published 2024-12-27.
How severe is CVE-2024-56522?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2024-56522 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.