CVE-2026-45643High
CVE
CVE
National Vulnerability Database
NVD is the U.S. government repository of standards-based vulnerability management data, built on top of the MITRE CVE list. Every record includes CPE applicability statements, CVSS v2 and v3.x base scores, CWE mappings and cross-references to advisories.
Region
US
Updates
15 min
License
Public Domain
Comprehensive catalog of publicly disclosed vulnerabilities with CPE matches, CVSS scoring and reference URLs. De-facto standard for cross-vendor correlation.
https://nvd.nist.gov →Share link
Anyone with the link can open this vulnerability.
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
CVSS
7.8
High
EPSS
0.00
p23
Published
2026-01-01
Updated
2026-01-01
Description
Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally.
Tags · CWE
CWE-822
CWE-822BaseIncomplete
Untrusted Pointer Dereference
The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.
https://cwe.mitre.org/data/definitions/822.html →Open in CWE collection →CAPEC-129
CAPEC-129MetaDraft
Pointer Manipulation
This attack pattern involves an adversary manipulating a pointer within a target application resulting in the application accessing an unintended memory location. This can result in the crashing of the application or, for certain pointer values, access to data that would not normally be possible or the execution of arbitrary code. Since pointers are simply integer variables, Integer Attacks may often be used in Pointer Attacks.
https://capec.mitre.org/data/definitions/129.html →Open in CAPEC collection →Affected products
365_appsMicrosoft_365Office_2021Office_2024
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Timeline
2026-01-01
Published
2026-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: L
Local (L)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: R
Required (R)
Scope
S: U
Unchanged (U)
Confidentiality Impact
C: H
High (H)
Integrity Impact
I: H
High (H)
Availability Impact
A: H
High (H)
Exploit indicators
EPSS
0.001 · p23
Known exploited (KEV)
No
Known exploits — Сканер-ВС
No Сканер-ВС checks registered for this vulnerability yet.
Affected software
| Product | Vendor | Status |
|---|---|---|
| 365_apps | * | Tracked |
| microsoft_365 | * | Tracked |
| office_2021 | * | Tracked |
| office_2024 | * | Tracked |
Source databases
CVE
CVE
National Vulnerability Database
NVD is the U.S. government repository of standards-based vulnerability management data, built on top of the MITRE CVE list. Every record includes CPE applicability statements, CVSS v2 and v3.x base scores, CWE mappings and cross-references to advisories.
Region
US
Updates
15 min
License
Public Domain
Comprehensive catalog of publicly disclosed vulnerabilities with CPE matches, CVSS scoring and reference URLs. De-facto standard for cross-vendor correlation.
https://nvd.nist.gov →Related vulnerabilities
External references