CVE-2023-45236 Predictable TCP ISNs in EDK II Network Package
Predictable TCP Initial Sequence Numbers in EDK II allow attackers to bypass security controls and access confidential data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-45236?
CVE-2023-45236 is a medium-severity vulnerability in TianoCore edk2, published on 16 Jan 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.
Which versions are affected by CVE-2023-45236?
It affects 1 product.
Products include Tianocore Edk2.
How do I fix CVE-2023-45236?
Apply the vendor's patch.
Is CVE-2023-45236 being exploited?
There is no known exploitation of CVE-2023-45236 in the wild and no public exploit code.
Other vulnerabilities in TianoCore edk2
Sources
Also known as AZL-38425, AZL-39388, AZL-39454, BELL-CVE-2023-45236, DEBIAN-CVE-2023-45236, GHSA-fqc4-ffq5-4r98.