CVE-2018-12257 json
An issue was discovered on Momentum Axel 720P 5.1.8 devices.
published 2018-06-12 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-4235
- cvss
- 4.4
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
An issue was discovered on Momentum Axel 720P 5.1.8 devices. There is Authenticated Custom Firmware Upgrade via DNS Hijacking. An authenticated root user with CLI access is able to remotely upgrade firmware to a custom image due to lack of SSL validation by changing the nameservers in /etc/resolv.conf to the attacker's server, and serving the expected HTTPS response containing new firmware for the device to download.
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- rchase.com https://rchase.com/downloads/momentum-iot-penetration-test-report.pdf referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 4.4 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
rchase.com
/downloads/momentum-iot-penetration-test-report.pdf
exploit, third-party-advisory
Sources
- CVE List CVE-2018-12257
- NVD CVE-2018-12257
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