CVE-2026-62783: Windows Remote Access Connection Manager Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally.
CSIRTS triage
- What
- Heap-based buffer overflow in Windows Remote Access Connection Manager allows local privilege escalation.
- Who is affected
- Authorized local attackers on affected Windows systems.
- Urgency
- High severity (CVSS 7.8) but requires prior authorization; patch when available.
- Action
- Apply Windows security update addressing CVE-2026-62783.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62783
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.
- Moderate exploitation riskCVE-2026-627831.8% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 77% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-62783 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
Recent advisories for Windows Remote Access
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.
- highCVE-2026-65672: Heap-based buffer overflow in Windows Remote Access API allows an authorized attacker to eleva…nvd · 2026-08-11
- highCVE-2026-65671: Heap-based buffer overflow in Windows Remote Access API allows an authorized attacker to eleva…nvd · 2026-08-11
- highCVE-2026-62819: Remote Code Execution in Windows Routing and Remote Access Service (RRAS) allows attacker to g…nvd · 2026-08-11
- highCVE-2026-62783: Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized at…nvd · 2026-08-11
- highCVE-2026-62758: Heap-based buffer overflow in Windows Remote Access Connection Manager allows an authorized at…nvd · 2026-08-11
- highCVE-2026-62758: Windows Remote Access Connection Manager Elevation of Privilege Vulnerabilitymsrc · 2026-08-11
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