How severe is CVE-2023-45232?

CVE-2023-45232 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-45232 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-45232?

CVE-2023-45232 affects Tianocore Edk2. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-45232?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2023-45232 have an EU (EUVD) identifier?

Yes. CVE-2023-45232 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-49538.

When was CVE-2023-45232 published?

CVE-2023-45232 was published on 2024-01-16 and last updated on 2026-06-17.

CVE-2023-45232

CVE-2023-45232 is a high-severity vulnerability in Tianocore Edk2 with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-835.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-49538
Weakness: CWE-835
Affected product: Tianocore Edk2
Published: 2024-01-16
Last modified: 2026-06-17

Description

EDK2's Network Package is susceptible to an infinite loop vulnerability when parsing unknown options in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.

Frequently asked questions

What is CVE-2023-45232?: EDK2's Network Package is susceptible to an infinite loop vulnerability when parsing unknown options in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.
How severe is CVE-2023-45232?: CVE-2023-45232 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-45232 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-45232?: CVE-2023-45232 affects Tianocore Edk2. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-45232?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2023-45232 have an EU (EUVD) identifier?: Yes. CVE-2023-45232 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-49538.
When was CVE-2023-45232 published?: CVE-2023-45232 was published on 2024-01-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tianocore:edk2:*:*:*:*:*:*:*:*

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