CVE-2026-57098
CVE-2026-57098 is a high-severity vulnerability in Microsoft Remote Desktop Client with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (49th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-347
- Affected product: Microsoft Remote Desktop Client
- Published:
- Last modified:
Description
Improper verification of cryptographic signature in Windows RDP Client allows an unauthorized attacker to disclose information over a network.
Frequently asked questions
- What is CVE-2026-57098?
- Improper verification of cryptographic signature in Windows RDP Client allows an unauthorized attacker to disclose information over a network.
- How severe is CVE-2026-57098?
- CVE-2026-57098 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2026-57098 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-57098?
- CVE-2026-57098 affects Microsoft Remote Desktop Client. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-57098?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2026-57098 published?
- CVE-2026-57098 was published on 2026-09-08 and last updated on 2026-09-16.
References
Affected products (1)
- cpe:2.3:a:microsoft:remote_desktop_client:*:*:*:*:*:windows:*:*
More vulnerabilities in Microsoft Remote Desktop Client
- CVE-2026-80077 — High (CVSS 8.8): Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- CVE-2026-80074 — High (CVSS 8.8): Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- CVE-2026-78463 — High (CVSS 8.8): Improper control of generation of code ('code injection') in Remote Desktop Client allows an unauthorized attacker to…
- CVE-2026-42985 — High (CVSS 8.8): Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- CVE-2026-32157 — High (CVSS 8.8): Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
- CVE-2025-58718 — High (CVSS 8.8): Use after free in Remote Desktop Client allows an unauthorized attacker to execute code over a network.
All CVEs affecting Microsoft Remote Desktop Client →
Other CWE-347 (Improper Verification of Cryptographic Signature) vulnerabilities
- CVE-2026-5430 — Critical (CVSS 10.0): The JWT authentication mechanism accepts tokens signed with algorithms other than those explicitly configured or…
- CVE-2026-56451 — Critical (CVSS 10.0): A vulnerability has been identified in Opcenter X (All versions < V2604). Affected applications do not properly…
- CVE-2026-48558 — Critical (CVSS 10.0): SimpleHelp versions 5.5.15 and prior and 6.0 pre-release versions contain an authentication bypass vulnerability in the…
- CVE-2023-25574 — Critical (CVSS 10.0): `jupyterhub-ltiauthenticator` is a JupyterHub authenticator for learning tools interoperability (LTI).…
- CVE-2024-45409 — Critical (CVSS 10.0): The Ruby SAML library is for implementing the client side of a SAML authorization. Ruby-SAML in <= 12.2 and 1.13.0 <=…
- CVE-2024-32962 — Critical (CVSS 10.0): xml-crypto is an xml digital signature and encryption library for Node.js. In affected versions the default…
Browse all CWE-347 (Improper Verification of Cryptographic Signature) vulnerabilities →