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CVE-2023-45235

HIGHCVSS 8.8/10EPSS 1.22%

Last modified

CVE-2023-45235 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. EDK2's Network Package is susceptible to a buffer overflow vulnerability when handling Server ID option from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.. EPSS estimates a 1.22% chance of exploitation in the next 30 days.

Description

EDK2's Network Package is susceptible to a buffer overflow vulnerability when handling Server ID option from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.22%

65.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
TianocoreEdk2<= 202311

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-45235?
EDK2's Network Package is susceptible to a buffer overflow vulnerability when handling Server ID option from a DHCPv6 proxy Advertise message. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality, Integrity and/or Availability.
How severe is CVE-2023-45235?
CVE-2023-45235 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.22% probability of exploitation in the next 30 days.
How do I fix CVE-2023-45235?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-45235?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST