CVE-2021-35034 Security feature bypass in NBG6604 series firmware
Remote attackers can bypass session expiration to access Zyxel NBG6604 devices if they intercept the correct token.
- 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-2021-35034?
CVE-2021-35034 is a high-severity vulnerability in Zyxel NBG6604 series firmware, published on 29 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An insufficient session expiration vulnerability in the CGI program of the Zyxel NBG6604 firmware could allow a remote attacker to access the device if the correct token can be intercepted.
Weakness: CWE-613
Which versions are affected by CVE-2021-35034?
It affects 1 product.
Products include Zyxel Nbg6604 Firmware.
How do I fix CVE-2021-35034?
No fix has been published for CVE-2021-35034 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-35034 being exploited?
There is no known exploitation of CVE-2021-35034 in the wild and no public exploit code.
Other vulnerabilities in Zyxel NBG6604 series firmware
Sources
Also known as GHSA-38gc-w4h9-7pmf.