CVE-2025-27021 Operating System Misconfiguration in Infinera G42
Low-privileged users can escalate privileges and access kernel memory via misconfigured sudo permissions on the Infinera G42 operating system.
- 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-2025-27021?
CVE-2025-27021 is a high-severity vulnerability in Infinera G42, published on 2 Jul 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The misconfiguration in the sudoers configuration of the operating system in Infinera G42 version R6.1.3 allows low privileged OS users to read/write physical memory via devmem command line tool. This could allow sensitive information disclosure, denial of service, and privilege escalation by tampering with kernel memory.
Details: The output of "sudo -l" reports the presence of "devmem" command executable as super user without using a password. This command allows to read and write an arbitrary memory area of the target device, specifying an absolute address.
Weakness: CWE-266
Which versions are affected by CVE-2025-27021?
It affects 1 product.
Products include Nokia G42 Firmware.
How do I fix CVE-2025-27021?
No fix has been published for CVE-2025-27021 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-27021 being exploited?
There is no known exploitation of CVE-2025-27021 in the wild and no public exploit code.
Other vulnerabilities in Infinera G42
Sources
Also known as GHSA-9w8q-pjh8-6h83.