CVE-2021-34728 Cisco IOS XR Software Authenticated User Privilege Escalation Vulnerabilities
Authenticated local attackers can elevate privileges on Cisco IOS XR devices via CLI vulnerabilities, requiring immediate patching by network administrators.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-34728?
CVE-2021-34728 is a high-severity vulnerability in Cisco Ios Xr, published on 9 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker with a low-privileged account to elevate privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
Weakness: CWE-78
Which versions are affected by CVE-2021-34728?
It affects 1 product.
Products include Cisco Ios Xr.
How do I fix CVE-2021-34728?
No fix has been published for CVE-2021-34728 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-34728 being exploited?
There is no known exploitation of CVE-2021-34728 in the wild and no public exploit code.
Other vulnerabilities in Cisco Ios Xr
- CVE-2020-3118 Cisco IOS XR Software Discovery Protocol Format String
- CVE-2020-3569 Cisco IOS XR Software DVMRP Memory Exhaustion
- CVE-2020-3566 Cisco IOS XR Software DVMRP Memory Exhaustion
- CVE-2010-3035 Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service
- CVE-2022-20821 Cisco IOS XR Open Port
Sources
Also known as GHSA-xgg8-892p-f458.