CVE-2026-62912
MEDIUMCVSS 6.5/10
Last modified
CVE-2026-62912 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to deny service over a network..
Description
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to deny service over a network.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 | >= 15.01.0.0, < 15.01.2507.072 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 14 | >= 15.02.0.0, < 15.02.1544.044 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 15 | >= 15.02.0.0, < 15.02.1748.049 |
| Microsoft | Microsoft Exchange Server Subscription Edition RTM | >= 15.02.0.0, < 15.02.2562.046 |
References
Timeline
- Published
- Last Modified
- Status
- Undergoing Analysis
Frequently Asked Questions
What is CVE-2026-62912?
Deserialization of untrusted data in Microsoft Exchange Server allows an authorized attacker to deny service over a network.
How severe is CVE-2026-62912?
CVE-2026-62912 has a CVSS score of 6.5/10 (MEDIUM severity).
How do I fix CVE-2026-62912?
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-2026-62902Inclusion of functionality from untrusted control sphere in …6.5
- CVE-2026-62908Concurrent execution using shared resource with improper syn…7
- CVE-2026-62909Uncaught exception in .NET allows an authorized attacker to …7.8
- CVE-2026-6291Bleichenbacher padding oracle in PKCS#7 KTRI decryption. Whe…6.5
- CVE-2026-62910Improper control of resource identifiers ('resource injectio…7.2
- CVE-2026-62911Authentication bypass by capture-replay in Microsoft Exchang…8
- CVE-2026-62913Heap-based buffer overflow in Microsoft Exchange Server allo…8.8
- CVE-2026-62914Improper neutralization of input during web page generation …7.3
- CVE-2026-62915Missing authorization in Microsoft Exchange Server allows an…6.5
- CVE-2026-62917Improper input validation in Microsoft Office SharePoint all…4.6
- CVE-2026-62918Improper verification of cryptographic signature in Microsof…7.5
- CVE-2026-6292The MP Customize Login Page plugin for WordPress is vulnerab…4.3
Are you affected by CVE-2026-62912?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST