Remote denial of service in edk2

1) Out-of-bounds read

EUVDB-ID: #VU105798

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-2295

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition. A malicious iSCSI target can cause a remote BIOS to reveal its memory contents with a specially crafted R2T message.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

edk2: edk2-stable201808 - UDK2018

CPE2.3

• cpe:2.3:h:tianocore:edk2:edk2-stable201808:*:*:*:*:*:*:*
• cpe:2.3:h:tianocore:edk2:edk2-stable201811:*:*:*:*:*:*:*
• cpe:2.3:h:tianocore:edk2:edk2-stable201903:*:*:*:*:*:*:*

External links

https://github.com/tianocore/edk2/security/advisories/GHSA-8522-69fh-w74x

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.