CVE-2025-64512

Description

Pdfminer.six is a community maintained fork of the original PDFMiner, a tool for extracting information from PDF documents. Prior to version 20251107, pdfminer.six will execute arbitrary code from a malicious pickle file if provided with a malicious PDF file. The `CMapDB._load_data()` function in pdfminer.six uses `pickle.loads()` to deserialize pickle files. These pickle files are supposed to be part of the pdfminer.six distribution stored in the `cmap/` directory, but a malicious PDF can specify an alternative directory and filename as long as the filename ends in `.pickle.gz`. A malicious, zipped pickle file can then contain code which will automatically execute when the PDF is processed. Version 20251107 fixes the issue.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: HIGH
CVSS score: 8.6 / 10
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Effective score: 8.6 / 10 HIGH source: CNA overview
CWE(s): CWE-502
Reserved: 2025-11-05
Published: 2025-11-10 22:58 UTC
Last updated: 2026-01-08 23:04 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/64xxx/CVE-2025-64512.json
Linked Threat: CVE-2025-64512 — pdfminer.six vulnerable to Arbitrary Code Execution via Crafted PDF Input

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2025-11-10 22:15:40 UTC
NVD last modified: 2026-01-08 22:16:02 UTC
NVD CVSS v3.1: 8.6 / 10 HIGH source: security-advisories@github.com
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Exploitability subscore: 1.8 / 10
Impact subscore: 6.0 / 10
EPSS score: 0.0014 (probability of exploitation in next 30 days)
EPSS percentile: 34.15% vs all CVEs — higher = more likely to be exploited, as of 2026-05-25

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2025-38315
Assigner: GitHub_M
Published: Nov 10, 2025, 9:58:37 PM
Updated: Jan 8, 2026, 10:04:11 PM
EUVD base score (CVSS 3.1): 8.6 / 10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
EUVD-reported EPSS: 0.1400
Vendors: pdfminer
Products: pdfminer.six (< 20251107)
Aliases: GHSA-wf5f-4jwr-ppcp

ENISA description: Pdfminer.six is a community maintained fork of the original PDFMiner, a tool for extracting information from PDF documents. Prior to version 20251107, pdfminer.six will execute arbitrary code from a malicious pickle file if provided with a malicious PDF file. The `CMapDB._load_data()` function in pdfminer.six uses `pickle.loads()` to deserialize pickle files. These pickle files are supposed to be part of the pdfminer.six distribution stored in the `cmap/` directory, but a malicious PDF can specify an alternative directory and filename as long as the filename ends in `.pickle.gz`. A malicious, zipped pickle file can then contain code which will automatically execute when the PDF is processed. Version 20251107 fixes the issue.

EUVD references (3)

Affected products (1)

Vendor	Product	Versions	Platforms
pdfminer	pdfminer.six	`< 20251107` (affected)	—

Affected products — CPE 2.3 (2) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:a:pdfminer:pdfminer.six:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Vendor references (3)

References embedded in the original CVE record by the assigning CNA.

https://github.com/pdfminer/pdfminer.six/security/advisories/GHSA-wf5f-4jwr-ppcp x_refsource_CONFIRM
https://github.com/pdfminer/pdfminer.six/commit/b808ee05dd7f0c8ea8ec34bdf394d40e63501086 x_refsource_MISC
https://github.com/pdfminer/pdfminer.six/releases/tag/20251107 x_refsource_MISC

MITRE references (3) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

https://github.com/pdfminer/pdfminer.six/commit/b808ee05dd7f0c8ea8ec34bdf394d40e63501086 x_refsource_MISC
https://github.com/pdfminer/pdfminer.six/releases/tag/20251107 x_refsource_MISC
https://github.com/pdfminer/pdfminer.six/security/advisories/GHSA-wf5f-4jwr-ppcp x_refsource_CONFIRM

Web references (4)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

http://cwe.mitre.org/data/definitions/502.html rapid7:cwe.mitre.org
https://www.cve.org/CVERecord?id=CVE-2025-64512 rapid7:www.cve.org
https://attackerkb.com/topics/CVE-2025-64512 rapid7:attackerkb.com
https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-38315 rapid7:euvd.enisa.europa.eu

NVD-tagged references (6)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/pdfminer/pdfminer.six/commit/b808ee05dd7f0c8ea8ec34bdf394d40e63501086 security-advisories@github.com Patch
https://github.com/pdfminer/pdfminer.six/releases/tag/20251107 security-advisories@github.com Release Notes
https://github.com/pdfminer/pdfminer.six/security/advisories/GHSA-wf5f-4jwr-ppcp security-advisories@github.com ExploitVendor Advisory
https://github.com/pdfminer/pdfminer.six/security/advisories/GHSA-wf5f-4jwr-ppcp 134c704f-9b21-4f2e-91b3-4a467353bcc0 ExploitVendor Advisory
https://lists.debian.org/debian-lts-announce/2025/11/msg00017.html af854a3a-2127-422b-91ae-364da2661108 Mailing List
https://lists.debian.org/debian-lts-announce/2026/01/msg00005.html af854a3a-2127-422b-91ae-364da2661108

Indicators (3)

IOCs linked to the auto-promoted Threat row.

Type	Value	VirusTotal	Attached
domain	`pickle.loads`	no local data	2026-05-18 21:18 UTC
domain	`pdfminer.six`	no local data	2026-05-18 21:18 UTC
domain	`pickle.gz`	no local data	2026-05-18 21:18 UTC

Remediations (16)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Microsoft December 2025 Patch Tuesday fixes 3 zero-days, 57 flaws

web:www.bleepingcomputer.com

Microsoft's December 2025 Patch Tuesday fixes 57 flaws, including one actively exploited and two publicly disclosed zero-day vulnerabilities.

2026-05-22 15:05 UTC
Known Exploited Vulnerabilities Catalog - CISA

web:www.cisa.gov

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild. Organizations should use the KEV catalog as an input to their vulnerability management prioritization framework.

2026-05-22 15:05 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-05-22 15:05 UTC
ArcGIS Server Security 2025 Update 1 Patch - Esri Support

web:support.esri.com

Refer to the Issues Addressed with this Patch section for details about BUG-000171492. The new patch when shown as available in the ArcGIS Enterprise Patch Notification tool, is listed as ArcGIS Server Security 2025 Update 1 Patch with a release date of April 17, 2025 ; once installed, it is listed as ArcGIS Server Security 2025 Update 1 Patch B.

2026-05-22 15:05 UTC
Landing Page | ServiceNow Common Vulnerabilities & Exposures (CVE ...

web:support.servicenow.com

Overview The advisories below document publicly disclosed Common Vulnerabilities and Exposures ( CVEs ) in the Now Platform by ServiceNow. Because ServiceNow uses various methods to communicate vulnerability information, patches, and other fixes, customers should review family, security patch , and hotfix release notes, which are available at https://docs.servicenow.com, for a complete list of ...

2026-05-22 15:05 UTC
Nvd - Cve-2025-64512

web:nvd.nist.gov

Secure .gov websites use HTTPS A lock () or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

2026-05-22 15:05 UTC
ArcGIS Server Security 2025 Update 2 Patch - Esri

web:www.esri.com

Key highlights The ArcGIS Server Security 2025 update 2 is available This patch resolves 10 Medium severity vulnerabilities This security patch is cumulative, and includes fixes provided in the ArcGIS Server Security 2025 update 1.

2026-05-22 03:18 UTC
Oracle Critical Patch Update Advisory - October 2025

web:www.oracle.com

This Critical Patch Update contains 374 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at October 2025 Critical Patch Update: Executive Summary and Analysis.

2026-05-22 03:18 UTC
Vulnerability Remediation vs. Mitigation: What are the Differences ...

web:www.secure.com

Learn the difference between vulnerability remediation and mitigation , and how a risk-based strategy can strengthen your security posture.

2026-05-22 03:18 UTC
Microsoft and Adobe Patch Tuesday, September 2025 Security Update ...

web:blog.qualys.com

EVALUATE Vendor-Suggested Mitigation with Policy Audit With Qualys Policy Audit's Out-of-the-Box Mitigation or Compensatory Controls, reduce the risk of a vulnerability being exploited because the remediation ( fix / patch ) cannot be done now; these security controls are not recommended by any industry standards, such as CIS, DISA-STIG.

2026-05-22 03:18 UTC
Patch Tuesday May 2026: Security Updates & CVE Analysis

web:zecurit.com

Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

2026-05-22 03:18 UTC
Microsoft December 2025 Patch Tuesday - 56 Vulnerabilities Fixed ...

web:cybersecuritynews.com

Microsoft released its final Patch Tuesday updates of 2025 on December 9, addressing 56 security vulnerabilities across Windows, Office, Exchange Server, and other components.

2026-05-22 03:18 UTC
CISA KEV Update: 5 Actively Exploited Vulnerabilities

web:dailysecurityreview.com

This wave of updates underscores the criticality of monitoring the KEV Catalog for timely vulnerability remediation—especially for federal agencies, which are mandated to patch listed vulnerabilities within defined time frames. Private sector organizations are also strongly advised to assess their exposure and implement risk mitigation measures.

2026-05-22 03:18 UTC
Microsoft Patch Tuesday, September 2025 Edition - Krebs on Security

web:krebsonsecurity.com

Microsoft Corp. today issued security updates to fix more than 80 vulnerabilities in its Windows operating systems and software. There are no known "zero-day" or actively exploited vulnerabilities ...

2026-05-22 03:18 UTC
Microsoft December 2025 Security Updates / FYI - Microsoft Q&A

web:learn.microsoft.com

Microsoft December 2025 Security Updates This release consists of the following 57 Microsoft CVEs : Tag CVE Base Score CVSS Vector Exploitability FAQs? Workarounds? Mitigations ? Windows PowerShell CVE - 2025 -54100 Windows Projected File System…

2026-05-22 03:18 UTC
Microsoft confirms patching issues in restricted Windows networks

web:www.bleepingcomputer.com

Microsoft says customers in restricted network environments may encounter Windows Update failures after installing the January 2026 optional non-security preview updates.

2026-05-22 03:18 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2025-64512.json.

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