How severe is CVE-2023-21414?

CVE-2023-21414 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over physical access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-21414 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-21414?

CVE-2023-21414 primarily affects Axis Axis Os. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-21414?

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-2023-21414 published?

CVE-2023-21414 was published on 2023-10-16 and last updated on 2026-06-17.

CVE-2023-21414

CVE-2023-21414 is a high-severity vulnerability in Axis Axis Os 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-121.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-121
Affected product: Axis Axis Os
Published: 2023-10-16
Last modified: 2026-06-17

Description

NCC Group has found a flaw during the annual internal penetration test ordered by Axis Communications. The protection for device tampering (commonly known as Secure Boot) contains a flaw which provides an opportunity for a sophisticated attack to bypass this protection. Axis has released patched AXIS OS versions for the highlighted flaw. Please refer to the Axis security advisory for more information and solution.

Frequently asked questions

What is CVE-2023-21414?: NCC Group has found a flaw during the annual internal penetration test ordered by Axis Communications. The protection for device tampering (commonly known as Secure Boot) contains a flaw which provides an opportunity for a sophisticated attack to bypass this protection. Axis has released patched AXIS OS versions for the highlighted flaw. Please refer to the Axis security advisory for more information and solution.
How severe is CVE-2023-21414?: CVE-2023-21414 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over physical access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-21414 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-21414?: CVE-2023-21414 primarily affects Axis Axis Os. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-21414?: 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-2023-21414 published?: CVE-2023-21414 was published on 2023-10-16 and last updated on 2026-06-17.

References

https://www.axis.com/dam/public/45/3c/a1/cve-2023-21414pdf-en-US-412758.pdf

Affected products (2)

cpe:2.3:o:axis:axis_os:*:*:*:*:*:*:*:*
cpe:2.3:o:axis:axis_os:*:*:*:*:active:*:*:*

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