CVE-2020-24377 json
A DNS rebinding vulnerability in the Freebox OS web interface in Freebox Server before 4.2.3.
published 2020-09-16 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-17109
- cvss
- 9.6
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
A DNS rebinding vulnerability in the Freebox OS web interface in Freebox Server before 4.2.3.
Patch / fix
- free freebox_revolution_firmware 4.2.3
- free freebox_mini_firmware 4.2.3
- free freebox_one_firmware 4.2.3
- free freebox_delta_firmware 4.2.3
- free freebox_pop_firmware 4.2.3
Exploit prediction
1.19% chance of exploitation in the next 30 days, higher than 68% 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 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-20 Improper Input Validation
References
-
gabriel.urdhr.fr
/2020/09/23/dns-rebinding-freebox/
exploit, third-party-advisory
-
dev.freebox.fr
/blog/?p=10222
vendor-advisory
Sources
- CVE List CVE-2020-24377
- NVD CVE-2020-24377
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