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% (56th 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% (56th 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% (56th 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:*:*:*:*:*:*:*:*

More vulnerabilities in Draytek Vigor3910 Firmware

CVE-2022-32548 — Critical (CVSS 10.0): An issue was discovered on certain DrayTek Vigor routers before July 2022 such as the Vigor3910 before 4.3.1.1.…
CVE-2024-51139 — Critical (CVSS 9.8): Buffer Overflow vulnerability in Vigor2620/LTE200 3.9.8.9 and earlier and Vigor2860/2925 3.9.8 and earlier and…
CVE-2024-51138 — Critical (CVSS 9.8): Vigor165/166 4.2.7 and earlier; Vigor2620/LTE200 3.9.8.9 and earlier; Vigor2860/2925 3.9.8 and earlier; Vigor2862/2926…
CVE-2024-41593 — Critical (CVSS 9.8): DrayTek Vigor310 devices through 4.3.2.6 allow a remote attacker to execute arbitrary code via the function…
CVE-2023-33778 — Critical (CVSS 9.8): Draytek Vigor Routers firmware versions below 3.9.6/4.2.4, Access Points firmware versions below v1.4.0, Switches…
CVE-2024-41339 — High (CVSS 8.8): An issue in the CGI endpoint used to upload configurations in Draytek devices Vigor 165/166 prior to v4.2.6 , Vigor…

All CVEs affecting Draytek Vigor3910 Firmware →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-76606 — Critical (CVSS 10.0): Joomla Extension - fabrikar.com - Path Traversal via image element in Fabrik < 4.7.3 - ???.
CVE-2026-18051 — Critical (CVSS 10.0): The W3 Total Cache WordPress plugin before 2.10.5 does not properly validate the request path it uses to build cache…
CVE-2026-74764 — Critical (CVSS 10.0): Pandora contains a path traversal vulnerability in its TAR archive extraction functionality. When processing a…
CVE-2026-16940 — Critical (CVSS 10.0): The Custom Fields WordPress plugin before 1.5.1 does not validate a user-supplied file path before deletion, allowing…
CVE-2026-67429 — Critical (CVSS 10.0): Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.6, image.download and related…
CVE-2026-59555 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Deletion in Participants Database <= 2.7.8.3 versions.

Browse all CWE-22 (Path Traversal) vulnerabilities →