CVE-2026-81385CWE-502insecure-deserialization

CVE-2026-81385

High · published September 8, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
70.0
In the wild
Unconfirmed
What it is

Deserialization of untrusted data in Microsoft Office Publisher allows an unauthorized attacker to execute code over a network.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.01288 · 70.0th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-09-08T22:20Z
Affected products (10)
ProductVersionsFixed in
microsoft/365_appsall versions—
microsoft/365_appsall versions—
microsoft/office_2019all versions—
microsoft/office_2019all versions—
microsoft/office_2021all versions—
microsoft/office_2021all versions—
microsoft/office_2024all versions—
microsoft/office_2024all versions—
microsoft/publisherall versions—
microsoft/publisherall versions—
References (1)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81385 · [email protected]
EPSS history
Timeline
  • 10 SEP 03:18Z
    EPSS moved — → 1%
    epss
  • 08 SEP 17:18Z
    Microsoft Office Publisher Remote Code Execution Vulnerability
    cvelistv5