CVE-2018-12257: An issue was discovered on Momentum Axel 720P 5.1.8 devices

Routine

MEDIUM 4.4MITIGATE

CVE-2018-12257 is a medium-severity flaw (CVSS 4.4) affecting momentum axel 720p firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	4.4 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-295
Published	2018-06-12
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: apollotechnologiesinc

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-06-12 18:29 UTCPublished CVE record published
2026-06-17 01:37 UTCUpdated Record last modified

apollotechnologiesinc momentum axel 720p firmware MITIGATE

Affected: 5.1.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.1.8

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-12257?

momentum axel 720p firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-12257 being exploited?

CVE-2018-12257 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-12257 affect?

CVE-2018-12257 affects momentum axel 720p firmware. Severity is medium (CVSS 4.4). 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

How urgent is CVE-2018-12257?

Priority 27/100. Public exploit reference

Related CVEs

CVE-2018-12323 MEDIUM 6.8 MITIGATE MITIGATE An issue was discovered on Momentum Axel 720P 5.1.8 devices
CVE-2018-12261 MEDIUM 4.4 MITIGATE An issue was discovered on Momentum Axel 720P 5.1.8 devices
CVE-2018-12260 MEDIUM 6.7 MITIGATE An issue was discovered on Momentum Axel 720P 5.1.8 devices
CVE-2018-12259 MEDIUM 6.8 MITIGATE An issue was discovered on Momentum Axel 720P 5.1.8 devices
CVE-2018-12258 MEDIUM 6.8 MITIGATE An issue was discovered on Momentum Axel 720P 5.1.8 devices

References

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