Detections
Analytics

Security Updates for Microsoft Word Products (July 2026)

high Nessus Plugin ID 326868

Synopsis

The Microsoft Word Products are affected by multiple vulnerabilities.

Description

The Microsoft Word Products are missing a security update. They are, therefore, affected by multiple vulnerabilities:

 - Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.
 (CVE-2026-55032, CVE-2026-55128)

 - Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally. (CVE-2026-55038, CVE-2026-55055, CVE-2026-55134)

 - Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally. (CVE-2026-55127, CVE-2026-55130)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Microsoft has released KB5002890 to address this issue.

See Also

https://support.microsoft.com/en-us/help/5002890

Plugin Details

Severity: High

ID: 326868

File Name: smb_nt_ms26_jul_word.nasl

Version: 1.2

Type: Local

Agent: windows

Published: 7/14/2026

Updated: 7/15/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.6

Percentile: 98.47

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2026-55134

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2026-55132

Vulnerability Information

CPE: cpe:/a:microsoft:word

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 7/14/2026

Vulnerability Publication Date: 7/14/2026

Reference Information

CVE: CVE-2026-55032, CVE-2026-55033, CVE-2026-55038, CVE-2026-55050, CVE-2026-55055, CVE-2026-55124, CVE-2026-55127, CVE-2026-55128, CVE-2026-55130, CVE-2026-55132, CVE-2026-55134, CVE-2026-55142

MSFT: MS26-5002890

MSKB: 5002890