Quick answers
- Is CVE-2026-70587 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-70587 being exploited in the wild.
- How severe is CVE-2026-70587?
- High severity, with a CVSS score of 7.5, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Windows Remote Desktop Protocol.
- Is there a fix for CVE-2026-70587?
- 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-2026-70587 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-70587?
- Check whether you run Microsoft Windows Remote Desktop Protocol. 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 an improper null termination issue in the Windows Remote Desktop Protocol implementation. It allows unauthenticated, network-based attackers to disclose information from affected systems. The flaw likely results in buffer over-read or information leakage when RDP processes improperly terminated protocol messages. No authentication is required; the attack is delivered over the network to standard RDP listening ports. An attacker can extract sensitive data from memory or process state without established credentials.
Affected products
- Microsoft Windows Remote Desktop Protocol
Timeline
- 2026-09-08: disclosed