CVE-2026-120752
📛 CVE Title
PyMuPDF 1.25.3 before 2.0 Stack Buffer Overflow via add_freetext_annot() Callout
Description
PyMuPDF 1.25.3 before 2.0 contains a stack-based buffer overflow vulnerability in JM_set_annot_callout_line() that copies a caller-supplied number of callout points into a fixed three-element stack array. Attackers who control the callout argument passed to Page.add_freetext_annot() can supply four or more points to overwrite the stack frame, crashing the process or executing code.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- VulnCheck
- CVSS severity
- HIGH
- CVSS score
- 7.7 / 10
- CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N- Effective score
- 7.7 / 10 HIGH source: CNA overview
- CWE(s)
-
CWE-121 - Reserved
- 2026-11-02
- Published
- 2026-11-02 22:16 UTC
- Last updated
- 2026-11-02 22:16 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/120xxx/CVE-2026-120752.json
- Linked Threat
- CVE-2026-120752 — PyMuPDF 1.25.3 before 2.0 Stack Buffer Overflow via add_freetext_annot() Callout
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-2026-115640
EUVD enrichment is queued; refresh the page in a few seconds.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| PyMuPDF | PyMuPDF |
1.25.3 (affected)
|
— |
Vendor references (7)
References embedded in the original CVE record by the assigning CNA.
- GitHub Issue #5112 issue-tracking
- GitHub Issue #5173 issue-trackingtechnical-description
- Patch Commit patch
- https://github.com/pymupdf/PyMuPDF/blob/1.28.2/src/extra.i#L787-L797 technical-description
- PyMuPDF 2.0 Release Notes release-notes
- https://github.com/pymupdf/PyMuPDF product
- VulnCheck Advisory: PyMuPDF 1.25.3 before 2.0 Stack Buffer Overflow via add_freetext_annot() Callout third-party-advisory
Web references (0)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
No web references attached yet.
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:community.spiceworks.com
Another record-breaking patch cycle…1408 CVE's , .NET 8 and 9 reach EOS next month (start planning, if you're not already) Microsoft Publisher starts vanishing and place your bets now, on how much breaks between now and next month!
2026-11-03 11:19 UTC -
web:crimsondesert.pearlabyss.com
Fellow Greymanes, Here are the fixes and improvements that have been added this patch . Update ScheduleThe patch is rolling out across all platforms. Please refer to the Update section below to see the state of the patch for each platform. UpdateSteam (PC): Patch available now Steam (Mac): Patch ...
2026-11-03 11:19 UTC -
web:epatch.pa.gov
Why does PATCH exist? Its purpose is to better enable the public to obtain criminal history record checks. The repository was created and is maintained in accordance with Pennsylvania's Criminal History Information Act contained in Chapter 91 of Title 18, Crimes Code. This Act also directs the Pennsylvania State Police (PSP) to disseminate criminal history data to criminal justice agencies ...
2026-11-03 11:19 UTC -
web:sec.cloudapps.cisco.com
As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. These vulnerabilities were found during internal testing and are not known to be actively exploited. To assist customers in patching ...
2026-11-03 11:19 UTC -
web:support.esri.com
This patch deals specifically with the issues listed below under Issues addressed with this patch . As part of the patch installation, the ArcGIS Server service is stopped and restarted. The restart may take several minutes depending on the number of services published on the ArcGIS Server site. This patch can be uninstalled as outlined in the Uninstalling this patch on Windows and Uninstalling ...
2026-11-03 11:19 UTC -
web:windowsreport.com
Microsoft has confirmed that the October 2026 Patch Tuesday updates can cause authentication failures on some Wi-Fi, Ethernet, and VPN connections. The problem stems from Microsoft's decision to enforce restrictions on legacy NTLMv1 authentication by default. According to Microsoft's ...
2026-11-03 11:19 UTC -
web:www.cve.org
At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures
2026-11-03 11:19 UTC -
web:www.nexusmods.com
Retired: the official 2.5 updates of RED4ext, ArchiveXL, TweakXL and Codeware are out, so use those. Still here: technical notes for mod authors on what patch 2.5 changed for plugins, plus source diff
2026-11-03 11:19 UTC -
web:www.oracle.com
This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.
2026-11-03 11:19 UTC -
web:www.veeam.com
Vulnerabilities Resolved in Veeam ONE 13.1 Patch 1 Veeam® is committed to ensuring its products protect customers from potential risks. As part of that commitment, we operate a Vulnerability Disclosure Program (VDP) for all Veeam products and perform extensive internal code audits. When a vulnerability is identified, our team promptly develops a patch to address and mitigate the risk. In line ...
2026-11-03 11:19 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-120752.json.
{
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{
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"vendor": "PyMuPDF",
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"status": "affected",
"version": "1.25.3",
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}
]
}
],
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},
{
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"value": "Dilanka Kaushal Hewage (r3vpwnx)"
}
],
"datePublic": "2026-09-07T00:00:00.000Z",
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}
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"name": "GitHub Issue #5112",
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"tags": [
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],
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},
{
"tags": [
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},
{
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"tags": [
"third-party-advisory"
],
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}
],
"title": "PyMuPDF 1.25.3 before 2.0 Stack Buffer Overflow via add_freetext_annot() Callout",
"x_generator": {
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"cveMetadata": {
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"datePublished": "2026-11-02T22:16:12.885Z",
"dateReserved": "2026-11-02T21:08:16.717Z",
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