High severity · published Sep 8, 2026
CVE-2026-57098
Microsoft Remote Desktop App for Windows Information Disclosure Vulnerability
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
Improper verification of cryptographic signature in Windows RDP Client allows an unauthorized attacker to disclose information over a network.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RD
Remote Desktop client for Windows Desktop · Microsoft
1.2.0.0 before 1.2.7279.0 · source: vendor
RD
Remote Desktop Client · Microsoft
before 1.2.7279 · source: NVD
Affected product
RD
Remote Desktop client for Windows Desktop
Microsoft
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-57098
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-57098
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57098
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