CVE-2020-24375 json
A DNS rebinding vulnerability in the UPnP MediaServer implementation in Freebox Server before 4.2.3.
published 2020-10-19 6 y ago modified 2026-06-17 4 mo 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
Exploit prediction
1.08% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-08).
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
-
gabriel.urdhr.fr
/2020/09/23/dns-rebinding-freebox/
exploit, third-party-advisory
-
dev.freebox.fr
/blog/?p=10222
release-notes, vendor-advisory
Sources
- CVE List CVE-2020-24375
- NVD CVE-2020-24375
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.