CVE-2026-62649 Denial of service in Reyrolle 7SR5
Unauthenticated remote attackers can crash Siemens Reyrolle 7SR5 devices via high-volume HTTP requests, causing denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-62649?
CVE-2026-62649 is a high-severity denial of service vulnerability in Siemens Reyrolle 7SR5, published on 8 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). The web server does not properly limit or manage system resources when processing a high volume of concurrent HTTP requests. This could allow an unauthenticated remote attacker to cause the entire device to crash and reboot, resulting in a denial-of-service condition.
Weakness: CWE-770
Which versions are affected by CVE-2026-62649?
How do I fix CVE-2026-62649?
No fix has been published for CVE-2026-62649 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-62649 being exploited?
There is no known exploitation of CVE-2026-62649 in the wild and no public exploit code.
Sources
Also known as GHSA-9v54-3jxm-8p8x.