HOMEVULNERABILITIESCVE-2025-62707
HIGH

CVE-2025-62707

CWE-834Published: October 22, 2025· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2025-62707 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

pypdf_project1 product(s)
pypdf
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/py-pdf/pypdf/commit/f2864d6dd9bac7cecd3f4f54308b25ebbfa178f8
PATCHhttps://github.com/py-pdf/pypdf/pull/3501
ADVISORYhttps://github.com/py-pdf/pypdf/security/advisories/GHSA-vr63-x8vc-m265

All References (4)

→
https://github.com/py-pdf/pypdf/commit/f2864d6dd9bac7cecd3f4f54308b25ebbfa178f8Patch
→
https://github.com/py-pdf/pypdf/pull/3501Patch
→
https://github.com/py-pdf/pypdf/releases/tag/6.1.3Release Notes
→
https://github.com/py-pdf/pypdf/security/advisories/GHSA-vr63-x8vc-m265Third Party Advisory

Quick Facts

CVE IDCVE-2025-62707
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-834
CISA KEVNo
Affected1 vendor(s)
PublishedOct 22, 2025

Related CVEs (CWE-834)

CVE-2017-12587
8.8
CVE-2021-4190
7.5
CVE-2017-11188
7.5
CVE-2018-9261
7.5
CVE-2021-35515
7.5
CVE-2023-5632
7.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-62707 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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