Skip to main content
VulnerabilityPublished Updated

CVE-2024-41588: CGI endpoints · Classic Buffer Overflow

Source CVE Database V5

0

Not known to be exploited · CVSS 8.0 High · fixed in 4.3.2.7 : patch DrayTek Vigor3910 devices soon.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 3.1 base score
8.0High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 25% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Affects
DrayTek Vigor3910 devices through 4.3.2.6
Patch
Available – fixed in 4.3.2.7
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Oct 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

To mitigate CVE-2024-41588, organizations should immediately restrict access to the management interfaces of DrayTek Vigor3910 devices to trusted networks and users only, employing network segmentation and VPNs where possible. Enforce strong authentication mechanisms, including complex passwords and multi-factor authentication, to reduce the risk of credential compromise. Monitor device logs and network traffic for unusual activity indicative of exploitation attempts. Disable or limit the use of vulnerable CGI endpoints if feasible, or apply configuration changes to reduce exposure. Since no official patches are currently available, organizations should engage with DrayTek support for guidance and monitor for firmware updates addressing this vulnerability. Additionally, consider deploying intrusion detection/prevention systems (IDS/IPS) with signatures targeting exploitation attempts of this vulnerability.

Description

The CGI endpoints v2x00.cgi and cgiwcg.cgi of DrayTek Vigor3910 devices through 4.3.2.6 are vulnerable to buffer overflows, by authenticated users, because of missing bounds checking on parameters passed through POST requests to the strncpy function.

References

Community reviews

Loading reviews…