CVE-2024-41593
Published: 03 October 2024
Summary
CVE-2024-41593 is a critical-severity Out-of-bounds Write (CWE-787) vulnerability in Draytek Vigor2962 Firmware. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 7.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2024-41593 is a heap-based buffer overflow in DrayTek Vigor310 devices running firmware through version 4.3.2.6. The flaw occurs in the ft_payload_dns() function when a byte sign-extension operation is applied to the length argument of a _memcpy call, allowing an out-of-bounds write classified under CWE-787. The vulnerability carries a CVSS 3.1 score of 9.8.
A remote attacker can exploit the issue over the network without authentication or user interaction to execute arbitrary code on the affected device. Successful exploitation grants full control of the device, including the ability to read, modify, or delete data and disrupt services.
Public references consist of Forescout research reports detailing multiple DrayTek issues, including this one. The associated EPSS score rose from lower values after disclosure to a peak of 0.1320 on 2026-01-13 before receding to the current 0.0769, indicating a period of increased exploitation interest.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-39090
Vulnerability details
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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.