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Fencer Vulns
critical 9.8

CVE-2024-51138 json

Vigor165/166 4.2.7 and earlier; Vigor2620/LTE200 3.9.8.9 and earlier; Vigor2860/2925 3.9.8 and earlier; Vigor2862/2926 3.9.9.5 and earlier;…

published 2025-02-27 20 mo ago modified 2026-07-05 4 mo ago also EUVD-2025-5925

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 64%
public exploits
0
none known

Summary

Vigor165/166 4.2.7 and earlier; Vigor2620/LTE200 3.9.8.9 and earlier; Vigor2860/2925 3.9.8 and earlier; Vigor2862/2926 3.9.9.5 and earlier; Vigor2133/2762/2832 3.9.9 and earlier; Vigor2135/2765/2766 4.4.5. and earlier; Vigor2865/2866/2927 4.4.5.3 and earlier; Vigor2962 4.3.2.8 and earlier; Vigor3912 4.3.6.1 and earlier; Vigor3910 4.4.3.1 and earlier a stack-based buffer overflow vulnerability has been identified in the URL parsing functionality of the TR069 STUN server. This flaw occurs due to insufficient bounds checking on the amount of URL parameters, allowing an attacker to exploit the overflow by sending a maliciously crafted request. Consequently, a remote attacker can execute arbitrary code with elevated privileges.

Patch / fix

  • draytek vigor3912_firmware 4.4.3.2
  • draytek vigor2620_firmware 3.9.9.1
  • draytek vigorlte200_firmware 3.9.9.1
  • draytek vigor2860_firmware 3.9.8.3
  • draytek vigor2925_firmware 3.9.8.3
  • draytek vigor2862_firmware 3.9.9.8
  • draytek vigor2926_firmware 3.9.9.8
  • draytek vigor2133_firmware 3.9.9.2
  • draytek vigor2762_firmware 3.9.9.2
  • draytek vigor2832_firmware 3.9.9.2
  • draytek vigor2135_firmware 4.4.5.5
  • draytek vigor2765_firmware 4.4.5.5
  • draytek vigor2766_firmware 4.4.5.5
  • draytek vigor2763_firmware 4.4.5.5
  • draytek vigor2865_firmware 4.4.5.8
  • draytek vigor2866_firmware 4.4.5.8
  • draytek vigor2927_firmware 4.4.5.8
  • draytek vigor2962_firmware 4.3.2.9, 4.4.3.2
  • draytek vigor3910_firmware 4.3.2.9, 4.4.3.2
  • draytek vigor2915_firmware 4.4.5

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
total
Assessed
20 mo ago

Exploit prediction

1.05% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Classification

Weakness
  • CWE-121 Stack-based Buffer Overflow

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.