CVE-2024-50667: Trendnet TEW-820AP · Classic Buffer Overflow
Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 6.6% chance of exploitation in 30 days – higher than 93% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 11 Nov 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
- Immediate mitigation should focus on network-level controls: restrict access to the management interface of the Trendnet TEW-820AP devices to trusted IP addresses only, preferably via VPN or internal networks.
- Disable IPv6 functionality on the device if not required, as the vulnerability is related to IPv6 address processing.
- Monitor network traffic for unusual or malformed IPv6 packets targeting the vulnerable endpoints to detect potential exploitation attempts.
- Implement strict firewall rules to block unsolicited inbound traffic to the device's HTTP management ports from untrusted sources.
- Regularly check Trendnet's official channels for firmware updates or patches addressing this vulnerability and apply them promptly once available.
- Consider replacing or segmenting vulnerable devices in critical network zones until a patch is deployed.
- Conduct internal audits to inventory all affected devices and assess exposure levels.
- Employ intrusion detection/prevention systems (IDS/IPS) with signatures tuned to detect exploitation attempts of this specific stack overflow.
Description
The boa httpd of Trendnet TEW-820AP 1.01.B01 has a stack overflow vulnerability in /boafrm/formIPv6Addr, /boafrm/formIpv6Setup, /boafrm/formDnsv6. The reason is that the check of ipv6 address is not sufficient, which allows attackers to construct payloads for attacks.