PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-120276 WAVLINK CVE debrief

A weakness has been identified in WAVLINK WN536AX6-A V260507_2.0.0. This vulnerability affects the function sub_416760 of the file /bin/ioos of the component Web Management Interface. This manipulation of the argument group_name causes os command injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure.

Vendor
WAVLINK
Product
WN536AX6-A
CVSS
CRITICAL 9.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-11-02
Original CVE updated
2026-11-02
Advisory published
2026-11-02
Advisory updated
2026-11-02

Who should care

Defenders responsible for WAVLINK WN536AX6-A V260507_2.0.0 devices, especially those with remote access enabled, should assess their exposure to this vulnerability and prioritize verification and potential remediation efforts.

Why it matters

CVE-2026-120276 is a critical os command injection vulnerability in WAVLINK WN536AX6-A V260507_2.0.0 devices that can be exploited remotely, with a CVSS score of 9.3. Defenders should prioritize verifying exposure, assessing the Web Management Interface, and monitoring for public exploit usage.

  • Verify exposure of WAVLINK WN536AX6-A V260507_2.0.0 devices to os command injection attacks
  • Assess the Web Management Interface for potential vulnerabilities
  • Monitor for public exploit usage and adjust defensive priorities accordingly
  • Remediate or apply compensating controls for affected devices

Technical summary

The WAVLINK WN536AX6-A V260507_2.0.0 device is vulnerable to os command injection attacks due to a weakness in the sub_416760 function of the /bin/ioos file in the Web Management Interface. This vulnerability, identified as CVE-2026-120276, has a critical CVSS score of 9.3 and can be exploited remotely. The vulnerability affects the device's Web Management Interface, and defenders should prioritize verifying exposure and assessing the interface for potential os command injection attacks. The CVE record and NVD entry provide details on the vulnerability.

Defensive priority

Defenders should prioritize verifying exposure of WAVLINK WN536AX6-A V260507_2.0.0 devices, especially those with remote access enabled, and assess the Web Management Interface for potential os command injection attacks.

Recommended defensive actions

  • Verify exposure of WAVLINK WN536AX6-A V260507_2.0.0 devices
  • Assess the Web Management Interface for potential os command injection attacks
  • Monitor for public exploit usage and adjust defensive priorities accordingly
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review
  • Track exceptions, retest remediated assets, and close the item only after evidence is documented
  • Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, including its critical CVSS score of 9.3 and the potential for remote os command injection attacks. The WAVLINK WN536AX6-A V260507_2.0.0 device's Web Management Interface is affected, and defenders should verify exposure, assess the interface for potential vulnerabilities, and monitor for public exploit usage. Evidence is limited to CVE and NVD details.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-120276 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-120276

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-120276 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-120276

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.