WAVLINK WN536AX6-A protocol.csp host_black os command injection
Affects WAVLINK WN536AX6-A firmware V260507 on factory default configuration, where FirstLogin=1 enables passwordless login. No fix is listed.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- Published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 22/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Specific setups only
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The WAVLINK WN536AX6-A router firmware contains an OS command injection flaw in its protocol.csp host_black function, where the mac argument is not properly sanitized. A remote attacker could exploit this to run arbitrary operating system commands on the affected device.
Read the original description
A vulnerability was determined in WAVLINK WN536AX6-A V260507. This impacts the function host_black of the file /protocol.csp. This manipulation of the argument mac causes os command injection. Remote exploitation of the attack is possible. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure.
What to do
Check whether your setup matches what the bug needs.
Firmware version V260507 of the WN536AX6 product Device uses factory default configuration with FirstLogin=1, which enables passwordless loginWorkaround: The facts do not list a workaround. Ask WAVLINK for guidance on changing the default FirstLogin setting while no fix is available.
Timeline
- CVE published
- First seen by cve.now
- Posted on X by cve.now
Affected versions
- WAVLINK WN536AX6-A
V260507
Evidence 5
- Advisory
- Advisory
- Advisory
- Advisory
- Exploit
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-120282
What does this mean?
The protocol.csp host_black page lets an attacker inject shell commands through the mac parameter. Those commands run with root privileges, which could fully compromise the device.Source: github.com
Am I affected, and how do I check?
The reported issue covers firmware version V260507 of the WN536AX6 running factory default configuration, where FirstLogin=1 enables passwordless login. Check the firmware version shown in the device and whether FirstLogin is set to 1.Source: github.com
What should I do about it?
The facts do not name a fixed firmware version to upgrade to. Check with WAVLINK for an updated firmware release.Source: github.com
Is it being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
What if there's no patch?
The facts do not list a workaround. Ask WAVLINK for guidance on changing the default FirstLogin setting while no fix is available.Source: github.com