CVE-2026-70269
HIGHCVSS 8.1/10EPSS 0.70%
Last modified
CVE-2026-70269 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.. EPSS estimates a 0.70% chance of exploitation in the next 30 days.
Description
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | 365 Apps | All versions |
| Microsoft | Microsoft 365 | All versions |
| Microsoft | Office 2021 | All versions |
| Microsoft | Office 2024 | All versions |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-70269?
Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
How severe is CVE-2026-70269?
CVE-2026-70269 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.
How do I fix CVE-2026-70269?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-70262Heap-based buffer overflow in WebDAV allows an unauthorized …8.8
- CVE-2026-70263Out-of-bounds read in Microsoft Office Word allows an unauth…6.5
- CVE-2026-70264Improper link resolution before file access ('link following…5.5
- CVE-2026-70266Improper neutralization of special elements used in an sql c…8.8
- CVE-2026-70267Inclusion of functionality from untrusted control sphere in …7.2
- CVE-2026-70268Heap-based buffer overflow in Microsoft Office Word allows a…8.8
- CVE-2026-7027A vulnerability was identified in D-Link DSL-2740R EU_01.15.…4.8
- CVE-2026-70270Untrusted pointer dereference in Windows Container Isolation…5.5
- CVE-2026-70271Use after free in Windows Win32 Kernel Subsystem allows an a…7
- CVE-2026-70272Use after free in Windows Installer allows an authorized att…7
- CVE-2026-70273Use after free in Windows Win32 Kernel Subsystem allows an a…7
- CVE-2026-70274Use after free in Windows Bind Filter Driver allows an autho…7.8
Are you affected by CVE-2026-70269?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST