CVE-2021-39999 Memory corruption in eSE620X vESS
A buffer overflow in Huawei eSE620X vESS allows attackers to cause denial of service by sending crafted packets.
- 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-2021-39999?
CVE-2021-39999 is a high-severity memory corruption vulnerability in eSE620X vESS, published on 11 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
There is a buffer overflow vulnerability in eSE620X vESS V100R001C10SPC200 and V100R001C20SPC200. An attacker can exploit this vulnerability by sending a specific message to the target device due to insufficient validation of packets. Successful exploit could cause a denial of service condition.
Weakness: CWE-120
Which versions are affected by CVE-2021-39999?
It affects 1 product.
Products include Huawei Ese620x Vess Firmware.
How do I fix CVE-2021-39999?
No fix has been published for CVE-2021-39999 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-39999 being exploited?
There is no known exploitation of CVE-2021-39999 in the wild and no public exploit code.
Other vulnerabilities in eSE620X vESS
Sources
Also known as GHSA-cf47-5h63-vm9m.