Quick answers
- Is CVE-2026-83754 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-83754 being exploited in the wild.
- How severe is CVE-2026-83754?
- High severity, with a CVSS score of 7.5, published 13 October 2026.
- Which products and versions are affected?
- OpenSSH OpenSSH for Windows.
- Is there a fix for CVE-2026-83754?
- 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-2026-83754 attacked?
- It is attacked over the network, in an operating system.
- Am I affected by CVE-2026-83754?
- Check whether you run OpenSSH for Windows. 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
A heap-based buffer overflow exists in OpenSSH for Windows that can be exploited over the network without prior authentication. The vulnerability allows an attacker to execute arbitrary code with the privileges of the SSH process, potentially achieving remote code execution. The attack vector is network-based and requires no user interaction or prior access.
Affected products
- OpenSSH OpenSSH for Windows
Timeline
- 2026-10-13: disclosed