CVE-2026-61918: Windows Remote Desktop Client Information Disclosure Vulnerability

mediumCVSS 6.5CVE-2026-61918

Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.

CSIRTS triage

vendor: Microsoft product: Windows Remote Desktop Client Information disclosure Memory corruption

What: An out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose information over a network.
Who is affected: Users connecting to or via Remote Desktop Client on affected systems.
Urgency: Medium priority; CVSS 6.5 indicates moderate risk and network accessibility.
Action: Apply Microsoft security updates for Remote Desktop Client when available.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity: medium — CVSS 6.5
Published: 2026-08-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-61918

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-619180.87% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 56% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-61918	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

unknownexploitedNCSC-2026-0284 [1.00] [M/H] Vulnerabilities patched in Microsoft Windowsncsc-nl
mediumCVE-2026-61918: Out-of-bounds read in Remote Desktop Client allows an unauthorized attacker to disclose inform…nvd

Recent advisories for Windows Remote Desktop

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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