Threat Intelligence / CVE / CVE-2026-42985

CVE-2026-42985 — Microsoft Remote Desktop client for Windows Desktop

CVSS v3.1 8.8 (HIGH) · EPSS 0.9% (higher than 57.7% of all scored CVEs) · Priority 6.7/10 · Published 2026-06-09

As of 2026-06-23, CVE-2026-42985 is a HIGH-severity vulnerability in Microsoft Remote Desktop client for Windows Desktop, CVSS v3.1 8.8, EPSS 0.9% (57.7th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-42985, most recently “Microsoft June 2026 Patch Tuesday — 198+ CVEs Including CVE-2026-49160 (HTTP.sys 'HTTP/2 Bomb' DoS), CVE-2026-50507 (BitLocker 'YellowKey' Bypass) and CVE-2026-45586 (Collaborative Translation Framework EoP)”.

Last updated: 2026-06-23

What is CVE-2026-42985?

Heap-based buffer overflow in Remote Desktop Client allows an unauthorized attacker to execute code over a network.

The record classifies CVE-2026-42985 under weakness class CWE-416. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity, availability. 12 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 95 days ago.

Severity and exploitation probability

CVSS v3.1 base score
8.8 — HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
EPSS (FIRST)
0.9% probability of exploitation in the next 30 days, higher than 57.7% of all scored CVEs
CISA KEV
Not listed in the CISA Known Exploited Vulnerabilities catalog
Threadlinqs priority
6.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
Published
2026-06-09, last modified 2026-06-23

Is CVE-2026-42985 being exploited?

No public exploitation evidence for CVE-2026-42985 is recorded in the sources Threadlinqs tracks — CISA KEV, Exploit-DB, public proof-of-concept repositories and ProjectDiscovery Nuclei — as of 2026-06-23. That is an absence of evidence in those feeds, not a guarantee that the vulnerability is unexploited.

Affected products and versions

How to fix CVE-2026-42985

Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42985. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

Threat activity tracking CVE-2026-42985

1 tracked threat in the Threadlinqs corpus references CVE-2026-42985, either in the campaign’s CVE list or as an indicator on the campaign record.

Sources

Enriched from CVE.org, NVD, FIRST EPSS, GitHub Security Advisories. Last verified by Threadlinqs on . This product uses the NVD API but is not endorsed or certified by the NVD.

Vendor advisory and patch

Full detection coverage & IOCs for threats exploiting CVE-2026-42985 are available via the Threadlinqs MCP server (Purple tier). View plans →

← all vulnerabilities · Markdown version · Threadlinqs Intelligence