CVE-2021-26581 Denial of service in HPE Superdome Flex Server
Remote attackers can cause a denial of service on the BMC web interface, requiring a reboot to recover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-26581?
CVE-2021-26581 is a medium-severity denial of service vulnerability in HPE Superdome Flex Server, published on 1 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A potential security vulnerability has been identified in HPE Superdome Flex server. A denial of service attack can be remotely exploited leaving hung connections to the BMC web interface. The monarch BMC must be rebooted to recover from this situation. Other BMC management is not impacted. HPE has made the following software update to resolve the vulnerability in HPE Superdome Flex Server: Superdome Flex Server Firmware 3.30.142 or later.
Which versions are affected by CVE-2021-26581?
It affects 1 product.
Products include Hpe Superdome Flex Server Firmware.
How do I fix CVE-2021-26581?
No fix has been published for CVE-2021-26581 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-2021-26581 being exploited?
There is no known exploitation of CVE-2021-26581 in the wild and no public exploit code.
Other vulnerabilities in HPE Superdome Flex Server
Sources
Also known as GHSA-757c-m9hq-jqrg.