CVE-2025-62707

6.6 MEDIUM 0.4% exploit odds Fix listed Denial of service Library

What it is

pypdf is a free and open-source pure-python PDF library. Prior to version 6.1.3, an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires parsing the content stream of a page which has an inline image using the DCTDecode filter. This has been fixed in pypdf version 6.1.3.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of service disruption.
Exploit odds: 0.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2025-10-22 22:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-11-02 16:06 UTC Last updatedMost recent change to the record

Details

Published: 2025-10-22 22:15 UTC
Last modified: 2026-11-02 16:06 UTC
Exploit probability: 0.4% · EPSS, next 30 days
Weakness: CWE-834
Record status: Analyzed

Affected

py-pdf Pypdf < 6.1.3

Attack profile CVSS 4.0 · 6.6

Attack vector: Network
Complexity: Low
Attack requirements: None
Privileges needed: None
User interaction: None
Confidentiality: None
Integrity: None
Availability: High

Raw vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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Fix and advisories

References

NVD record · CVE.org record