How severe is CVE-2024-23721?

CVE-2024-23721 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 high, integrity none, and availability none.

Is CVE-2024-23721 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-23721?

CVE-2024-23721 affects Draytek Vigor3910 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-23721?

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-2024-23721 have an EU (EUVD) identifier?

Yes. CVE-2024-23721 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-21182.

When was CVE-2024-23721 published?

CVE-2024-23721 was published on 2024-03-20 and last updated on 2026-06-17.

CVE-2024-23721

CVE-2024-23721 is a high-severity vulnerability in Draytek Vigor3910 Firmware 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-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-21182
Weakness: CWE-22
Affected product: Draytek Vigor3910 Firmware
Published: 2024-03-20
Last modified: 2026-06-17

Description

A Directory Traversal issue was discovered in process_post on Draytek Vigor3910 4.3.2.5 devices. When sending a certain POST request, it calls the function and exports information.

Frequently asked questions

What is CVE-2024-23721?: A Directory Traversal issue was discovered in process_post on Draytek Vigor3910 4.3.2.5 devices. When sending a certain POST request, it calls the function and exports information.
How severe is CVE-2024-23721?: CVE-2024-23721 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 high, integrity none, and availability none.
Is CVE-2024-23721 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-23721?: CVE-2024-23721 affects Draytek Vigor3910 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-23721?: 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-2024-23721 have an EU (EUVD) identifier?: Yes. CVE-2024-23721 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-21182.
When was CVE-2024-23721 published?: CVE-2024-23721 was published on 2024-03-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:draytek:vigor3910_firmware:*:*:*:*:*:*:*:*

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