Detections
Analytics
Security Updates for Microsoft Office Products (July 2026)
high Nessus Plugin ID 326874
Synopsis
The Microsoft Office Products are affected by multiple vulnerabilities.Description
The Microsoft Office Products are missing a security update. They are, therefore, affected by multiple vulnerabilities:- Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
(CVE-2026-55045)
- Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally. (CVE-2026-50301, CVE-2026-55017, CVE-2026-55049, CVE-2026-55056, CVE-2026-55125, CVE-2026-55129, CVE-2026-55140)
- Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
(CVE-2026-47290, CVE-2026-50314, CVE-2026-50467, CVE-2026-55018)
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 the following updates to address these issues:- KB5002887
- KB5002273
- KB5002748
- KB5002830
See Also
https://support.microsoft.com/en-us/help/5002273
https://support.microsoft.com/en-us/help/5002748
Plugin Details
Severity: High
ID: 326874
File Name: smb_nt_ms26_jul_office.nasl
Version: 1.2
Type: Local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 7/14/2026
Updated: 7/15/2026
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.9
Percentile: 58.11
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-2026-55140
CVSS v3
Risk Factor: High
Base Score: 8.4
Temporal Score: 7.3
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS Score Source: CVE-2026-55045
Vulnerability Information
CPE: cpe:/a:microsoft:office
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-2026-47290, CVE-2026-50301, CVE-2026-50314, CVE-2026-50467, CVE-2026-50665, CVE-2026-55017, CVE-2026-55018, CVE-2026-55022, CVE-2026-55023, CVE-2026-55026, CVE-2026-55027, CVE-2026-55028, CVE-2026-55035, CVE-2026-55042, CVE-2026-55045, CVE-2026-55047, CVE-2026-55049, CVE-2026-55056, CVE-2026-55057, CVE-2026-55121, CVE-2026-55125, CVE-2026-55129, CVE-2026-55139, CVE-2026-55140, CVE-2026-56192, CVE-2026-56193, CVE-2026-56195