CVE-2026-57098 Microsoft Remote Desktop App for Windows Information Disclosure Vulnerability
An attacker can disclose information over a network due to improper cryptographic signature verification in the Windows Remote Desktop Client.
- 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-2026-57098?
CVE-2026-57098 is a high-severity vulnerability in Microsoft Remote Desktop client for Windows Desktop, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Improper verification of cryptographic signature in Windows RDP Client allows an unauthorized attacker to disclose information over a network.
Weakness: CWE-347
Which versions are affected by CVE-2026-57098?
It affects 1 product.
Products include Microsoft Remote Desktop Client.
How do I fix CVE-2026-57098?
No fix has been published for CVE-2026-57098 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-57098 being exploited?
There is no known exploitation of CVE-2026-57098 in the wild and no public exploit code.
Other vulnerabilities in Microsoft Remote Desktop client for Windows Desktop
- CVE-2026-78463 Remote Desktop Client Remote Code Execution Vulnerability
- CVE-2026-80074 Remote Desktop Client Remote Code Execution Vulnerability
- CVE-2026-80077 Remote Desktop Client Remote Code Execution Vulnerability
- CVE-2026-42985 Remote Desktop Client Remote Code Execution Vulnerability
- CVE-2026-32157 Remote Desktop Client Remote Code Execution Vulnerability
Sources
Also known as GHSA-ffcr-244p-cmjq.