CVE-2026-88203
MEDIUMCVSS 6.5/10EPSS 0.85%
Last modified
CVE-2026-88203 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Untrusted pointer dereference in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.. EPSS estimates a 0.85% chance of exploitation in the next 30 days.
Description
Untrusted pointer dereference in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | 365 Apps | 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-2026-88203?
Untrusted pointer dereference in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information over a network.
How severe is CVE-2026-88203?
CVE-2026-88203 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.85% probability of exploitation in the next 30 days.
How do I fix CVE-2026-88203?
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-2026-88196Heap-based buffer overflow in Microsoft Office allows an una…8.8
- CVE-2026-88197Heap-based buffer overflow in Microsoft Office allows an una…8.8
- CVE-2026-88198Missing authorization in Microsoft Office SharePoint allows …8.8
- CVE-2026-88200Privilege context switching error in Microsoft Office ShareP…8.8
- CVE-2026-88201Buffer over-read in Microsoft Office Excel allows an unautho…6.5
- CVE-2026-88202Heap-based buffer overflow in Microsoft Office Word allows a…8.8
- CVE-2026-88204Improper neutralization of input during web page generation …7.3
- CVE-2026-88206Server-side request forgery (ssrf) in Microsoft Office Share…7.5
- CVE-2026-88207Heap-based buffer overflow in Microsoft Office PowerPoint al…7.5
- CVE-2026-88208Improper neutralization of input during web page generation …4.6
- CVE-2026-88209Improper neutralization of input during web page generation …4.6
- CVE-2026-8821Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7…7.1
Are you affected by CVE-2026-88203?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST