How severe is CVE-2023-25600?

CVE-2023-25600 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2023-25600 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-25600?

CVE-2023-25600 affects Insyde Insydecrpkg. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-25600?

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.

When was CVE-2023-25600 published?

CVE-2023-25600 was published on 2023-08-03 and last updated on 2026-06-17.

CVE-2023-25600

CVE-2023-25600 is a high-severity vulnerability in Insyde Insydecrpkg with a CVSS 3.x base score of 7.1. 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-125.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Insyde Insydecrpkg
Published: 2023-08-03
Last modified: 2026-06-17

Description

An issue was discovered in InsydeH2O. A malicious operating system can tamper with a runtime-writable EFI variable, leading to out-of-bounds memory reads and a denial of service. This is fixed in version 01.01.04.0016.

Frequently asked questions

What is CVE-2023-25600?: An issue was discovered in InsydeH2O. A malicious operating system can tamper with a runtime-writable EFI variable, leading to out-of-bounds memory reads and a denial of service. This is fixed in version 01.01.04.0016.
How severe is CVE-2023-25600?: CVE-2023-25600 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2023-25600 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-25600?: CVE-2023-25600 affects Insyde Insydecrpkg. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-25600?: 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.
When was CVE-2023-25600 published?: CVE-2023-25600 was published on 2023-08-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:insyde:insydecrpkg:*:*:*:*:*:*:*:*

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