How severe is CVE-2023-41921?

CVE-2023-41921 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-41921 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2023-41921?

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

Does CVE-2023-41921 have an EU (EUVD) identifier?

Yes. CVE-2023-41921 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-46398.

When was CVE-2023-41921 published?

CVE-2023-41921 was published on 2024-07-02 and last updated on 2026-06-17.

CVE-2023-41921

CVE-2023-41921 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-494.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (17th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-46398
Weakness: CWE-494
Published: 2024-07-02
Last modified: 2026-06-17

Description

A vulnerability allows attackers to download source code or an executable from a remote location and execute the code without sufficiently verifying the origin and integrity of the code. This vulnerability can allow attackers to modify the firmware before uploading it to the system, thus achieving the modification of the target’s integrity to achieve an insecure state.

Frequently asked questions

What is CVE-2023-41921?: A vulnerability allows attackers to download source code or an executable from a remote location and execute the code without sufficiently verifying the origin and integrity of the code. This vulnerability can allow attackers to modify the firmware before uploading it to the system, thus achieving the modification of the target’s integrity to achieve an insecure state.
How severe is CVE-2023-41921?: CVE-2023-41921 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-41921 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2023-41921?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2023-41921 have an EU (EUVD) identifier?: Yes. CVE-2023-41921 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-46398.
When was CVE-2023-41921 published?: CVE-2023-41921 was published on 2024-07-02 and last updated on 2026-06-17.

References

https://advisories.ncsc.nl/advisory?id=NCSC-2024-0273

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