Scope of GRUB attack?

[Mike-BTU]

GRUB2 Vulnerabilities Exposes Millions of Linux Systems to Cyber Attack

A critical set of 20 vulnerabilities in GRUB2 the ubiquitous bootloader underpinning most Linux distributions and Unix-like systems has exposed.

cybersecuritynews.com

"Millions" of Linux computers compromised? Really?

How does this effect our home Linux machines behind a NAT firewall?

 

[Mike-BTU]

Crying wolf, I think.

 

[CaffeineAddict]

How does this effect our home Linux machines behind a NAT firewall?

As long as your PC is the only one behind NAT probably not at all.

But the more devices there are behind same NAT greater the risk.
E.g an android phone connected to same router is subject to attack that is unrelated to Linux, but could be used to compromise other computers on same LAN.

Such as explained on your link:

For instance, CVE-2025-0624 enables remote code execution via DHCP server responses during network booting, allowing attackers within the same network segment to inject malicious payloads into pre-boot memory.

 

[MikeRocor]

Crying wolf, I think.

I'd feel really bad if "secure boot" got bypassed.

 

[Deleted member 155466]

GRUB2 Vulnerabilities Exposes Millions of Linux Systems to Cyber Attack

A critical set of 20 vulnerabilities in GRUB2 the ubiquitous bootloader underpinning most Linux distributions and Unix-like systems has exposed.

cybersecuritynews.com

"Millions" of Linux computers compromised? Really?

How does this effect our home Linux machines behind a NAT firewall?

https://ogma.in/understanding-cve-2025-1125-grub2-vulnerability-and-mitigation-strategies

The systems affected include Grub2 versions up to 2.12. However, Red Hat Enterprise Linux versions 7, 8, 9, and OpenShift Container Platform 4 remain unaffected by default.

grub version command:

$ grub-install --version

grub-install (GRUB) 2.12-5+kali1