CVE-2022-35742 Microsoft Outlook Denial of Service Vulnerability
Attackers can cause Microsoft Outlook to crash, disrupting email access for users of affected Office versions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-35742?
CVE-2022-35742 is a high-severity denial of service vulnerability in Microsoft 365 Apps, published on 1 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Microsoft Outlook Denial of Service Vulnerability
Which versions are affected by CVE-2022-35742?
It affects 4 products.
Products include Microsoft 365 Apps, Microsoft Office, Microsoft Office Long Term Servicing Channel, Microsoft Outlook.
How do I fix CVE-2022-35742?
No fix has been published for CVE-2022-35742 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2022-35742 being exploited?
There is no known exploitation of CVE-2022-35742 in the wild and no public exploit code.
Other vulnerabilities in Microsoft 365 Apps
- CVE-2024-21413 Microsoft Outlook Improper Input Validation
- CVE-2023-23397 Microsoft Office Outlook Privilege Escalation
- CVE-2024-38189 Microsoft Project Remote Code Execution Vulnerability
- CVE-2023-35311 Microsoft Outlook Security Feature Bypass
- CVE-2026-21514 Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision
Sources
Also known as GHSA-3g3g-4368-2m5v.