CVE-2024-37631: Stack-based Buffer Overflow
Source CVE Database V5
Not known to be exploited · CVSS 8.8 High.
Data as of 26 Oct 2026, 09:15 UTC
- EPSS
- 0.6% chance of exploitation in 30 days – higher than 49% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 13 Jun 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
1. Immediately restrict remote management access to the TOTOLINK A3700R device, especially from untrusted networks, to reduce exposure to remote exploitation. 2. Disable any unnecessary services or features related to custom module uploads or firmware modifications until a vendor patch is available. 3. Monitor network traffic for unusual or suspicious requests targeting the UploadCustomModule function or abnormal file upload attempts. 4. Implement network segmentation to isolate vulnerable devices from critical infrastructure and sensitive data. 5. Regularly check for firmware updates from TOTOLINK and apply patches promptly once released. 6. If patching is not immediately possible, consider replacing affected devices with models from vendors with active security support. 7. Employ intrusion detection/prevention systems (IDS/IPS) with signatures or heuristics capable of detecting exploitation attempts targeting this vulnerability. 8. Educate users about the risks of exposing router management interfaces to the internet and enforce strong network security policies. These steps go beyond generic advice by focusing on specific attack vectors and device management practices relevant to this vulnerability.
Description
TOTOLINK A3700R V9.1.2u.6165_20211012 was discovered to contain a stack overflow via the File parameter in function UploadCustomModule.