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CVE-2026-77220: pdfio 0 to before 1.6.5
CVE-2026-77220. CVSS 3.1 base score 6.5 (MEDIUM, Vendor/CNA). EPSS 0.00421 (percentile 0.34571), scored 11-Oct-2026.
Affected technology
pdfio · 0 to before 1.6.5
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Description’s affected range: before 1.6.5
Component: Not specified by the source
Function: that
Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required
What an attacker can do
Attackers or concurrent users can trigger stack memory reuse across requests, causing cross-tenant document content corruption by silently overwriting one caller's dictionary string values with another caller's data. Vendor/CNA’s CVSS 4.0 assessment (base score 7.1/10) rates confidentiality and availability impact as none; integrity impact as high.
- CWE
- CWE-825
- CCR priority
- 26.1 /100 (P4)
- CVSS 3.1
- 6.5 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N · Vendor/CNA
- EPSS
- 0.00421 · percentile 0.34571 · 2026-10-11
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-12 16:54:24.294989+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-77220.html