Quick answers
- Is CVE-2026-71343 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-71343 being exploited in the wild.
- How severe is CVE-2026-71343?
- High severity, with a CVSS score of 7.8, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Windows Remote Access Connection Manager.
- Is there a fix for CVE-2026-71343?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-71343 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-71343?
- Check whether you run Microsoft Windows Remote Access Connection Manager. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The vulnerability is a heap-based buffer overflow in the Windows Remote Access Connection Manager component. An authenticated local attacker can exploit this memory corruption flaw to execute arbitrary code with system-level privileges. The vulnerability requires local access and authentication; remote exploitation is not possible. Successful exploitation allows full system compromise. Microsoft has released security updates to address this issue.
Affected products
- Microsoft Windows Remote Access Connection Manager
Timeline
- 2026-09-08: disclosed