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Fencer Intel
medium 6.5

CVE-2020-24375 json

A DNS rebinding vulnerability in the UPnP MediaServer implementation in Freebox Server before 4.2.3.

published 6y ago modified 4mo ago also EUVD-2020-17107

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

A DNS rebinding vulnerability in the UPnP MediaServer implementation in Freebox Server before 4.2.3.

Patch / fix

  • free freebox_server 4.2.3
  • free freebox_v5_firmware 1.5.29

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Exploit prediction

1.08% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • gabriel.urdhr.fr https://www.gabriel.urdhr.fr/2020/09/23/dns-rebinding-freebox/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-290 Authentication Bypass by Spoofing

References

Sources

Fencer Intel 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.