How severe is CVE-2024-41593?

CVE-2024-41593 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-2024-41593 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-2024-41593?

CVE-2024-41593 primarily affects Draytek Vigor3912 Firmware. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-41593?

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-2024-41593 have an EU (EUVD) identifier?

Yes. CVE-2024-41593 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-39090.

When was CVE-2024-41593 published?

CVE-2024-41593 was published on 2024-10-03 and last updated on 2026-06-17.

CVE-2024-41593

CVE-2024-41593 is a critical-severity vulnerability in Draytek Vigor3912 Firmware 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-39090
Weakness: CWE-787
Affected product: Draytek Vigor3912 Firmware
Published: 2024-10-03
Last modified: 2026-06-17

Description

DrayTek Vigor310 devices through 4.3.2.6 allow a remote attacker to execute arbitrary code via the function ft_payload_dns(), because a byte sign-extension operation occurs for the length argument of a _memcpy call, leading to a heap-based Buffer Overflow.

Frequently asked questions

What is CVE-2024-41593?: DrayTek Vigor310 devices through 4.3.2.6 allow a remote attacker to execute arbitrary code via the function ft_payload_dns(), because a byte sign-extension operation occurs for the length argument of a _memcpy call, leading to a heap-based Buffer Overflow.
How severe is CVE-2024-41593?: CVE-2024-41593 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-2024-41593 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-2024-41593?: CVE-2024-41593 primarily affects Draytek Vigor3912 Firmware. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-41593?: 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-2024-41593 have an EU (EUVD) identifier?: Yes. CVE-2024-41593 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-39090.
When was CVE-2024-41593 published?: CVE-2024-41593 was published on 2024-10-03 and last updated on 2026-06-17.

References

Affected products (24)

cpe:2.3:o:draytek:vigor3912_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2962_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor3910_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor165_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor1000b_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor166_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2135_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2763_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2765_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2865_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2766_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2866_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2915_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2620_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigorlte200_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2133_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2762_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2832_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2860_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2862_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2925_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2926_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor2952_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:draytek:vigor3220_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Draytek Vigor3912 Firmware

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-2024-41339 — 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…
CVE-2024-41334 — High (CVSS 8.8): Draytek devices Vigor 165/166 prior to v4.2.6 , Vigor 2620/LTE200 prior to v3.9.8.8, Vigor 2860/2925 prior to v3.9.7,…
CVE-2024-41340 — High (CVSS 8.4): An issue in Draytek devices Vigor 165/166 prior to v4.2.6 , Vigor 2620/LTE200 prior to v3.9.8.8, Vigor 2860/2925 prior…
CVE-2024-41596 — High (CVSS 8.0): Buffer Overflow vulnerabilities exist in DrayTek Vigor310 devices through 4.3.2.6 (in the Vigor management UI) because…

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