HIGHCVSS v3.1 8.8Vulnerability

CVE-2026-108427

Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

Properties

Severity
HIGH
Nvd fetched at
2026-10-20T21:14:08.448323+00:00
Epss score
0.00463
Cvss severity
HIGH
Cvss score
8.8
Retrieved at
2026-10-21T01:24:48+00:00
Last source
FIRST EPSS
Score
8.8
Cvss version
3.1
Cve id
CVE-2026-108427
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
First seen by Signal
2026-10-18T13:39:03+00:00
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published at
2026-10-15T21:17:07.947
Last modified
2026-10-20T12:36:32.500
Epss percentile
0.3886

Related Entities (8)

AFFECTS_PRODUCT (6)

→[Product]cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x64:*
→[Product]cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x64:*
→[Product]cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x64:*
→[Product]cpe:2.3:a:microsoft:office_2024:-:*:*:*:ltsc:-:x86:*
→[Product]cpe:2.3:a:microsoft:office_2021:-:*:*:*:ltsc:-:x86:*
→[Product]cpe:2.3:a:microsoft:365_apps:-:*:*:*:enterprise:*:x86:*

HAS_WEAKNESS (2)

→[Weakness]Heap-based Buffer Overflow
→[Weakness]Improper Input Validation

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CVE-2026-108427 (CVSS v3.1 8.8) — Ninja Signal Threat Intelligence | Ninja Signal