CVE-2026-77220

Katalog CVE

CVSS 6.5 · Medium EPSS 0,42%

Kerentanan Expired Pointer Dereference. Skor CVSS 3.1 6.5 (Medium) menurut vulncheck.com.

Deskripsi (NVD)

PDFio before 1.6.5 contains a dangling pointer vulnerability in the dictionary string-formatting function that stores a pointer to a stack-local buffer in the document dictionary without copying the string value. In multi-threaded or pooled-request environments, 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.

Rincian

Terbit di NVD

21 Agustus 2026

Terakhir diubah

12 Oktober 2026

Status NVD

Deferred

CVSS 3.1

6.5 (Medium), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-825: Expired Pointer Dereference

EPSS (30 hari)

0,42% peluang dieksploitasi; lebih tinggi dari 34,6% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/michaelrsweet/pdfio/commit/22b9afc800c5833f9e851e35938972bd4c76a357
• https://github.com/michaelrsweet/pdfio/releases/tag/v1.6.5
• https://www.vulncheck.com/advisories/pdfio-dangling-pointer-via-dictionary-string-formatting