CVE-2026-88361CWE-190

CVE-2026-88361

High · published September 24, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
36.4
In the wild
Unconfirmed
What it is

SumatraPDF 3.6.1 contains an integer overflow vulnerability in EngineMupdf::BuildPageLabelRec() when parsing PDF PageLabels /Nums entries.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00432 · 36.4th percentile
Weakness
CWE-190 · Integer Overflow or Wraparound
Published
2026-09-24T20:17Z
References (4)
https://github.com/chenjiefeng2001/sumatrapdf_folked/commit/b22a8c71ddc9de80ece5f88d14b434c20fee912e · [email protected]https://github.com/haimag/sumatrapdf/commit/8b999ff1bf0a8df244e75440682a3fd9a038eb2d · [email protected]https://github.com/sumatrapdfreader/sumatrapdf/issues/5952 · [email protected]https://github.com/sumatrapdfreader/sumatrapdf/issues/5952 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 26 SEP 03:27Z
    EPSS moved — → 0%
    epss
  • 24 SEP 00:00Z
    SumatraPDF 3.6.1 contains an integer overflow vulnerability in EngineMupdf::BuildPageLabelRec() when parsing PDF PageLabels /Nums entries
    cvelistv5