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  4. CVE 2026 89010 wavlink wn535m1wn535m3 unauthenticated os command
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Back to active CVEs
Critical · CVSS 9.3CVE-2026-89010

WAVLINK WN535M1/WN535M3 Unauthenticated OS Command Injection via sync_serverCVE-2026-89010

Answer in brief

CVE-2026-89010 records a Critical severity (CVSS 9.3) vulnerability in WAVLINK WN535M1/WN535M3 Unauthenticated OS Command Injection via sync_server. The current sources do not mark it as known exploited. The current feed maps WAVLINK Technology/WN535M1 (generic), WAVLINK Technology/WN535M3 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 11, 2026Updated Sep 11, 2026Source checked Oct 27, 2026First seen by HOL Sep 11, 2026Material review Sep 11, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.3
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 9.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps WAVLINK Technology/WN535M1 (generic), WAVLINK Technology/WN535M3 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
WAVLINK Technology/WN535M1genericM35M1_V210223Not reported
WAVLINK Technology/WN535M3genericM35M1_V210223Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for WAVLINK Technology/WN535M1, WAVLINK Technology/WN535M3.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 11, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 11, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 11, 2026

Sources and claim methodology

  • Source referencedocs.wavlink.xyz
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source description

WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1_V250922 contain an unauthenticated OS command injection vulnerability that allows remote attackers to execute arbitrary commands as root by sending crafted filenames to the sync_server daemon on TCP port 13136. The daemon interpolates attacker-controlled filename input containing shell metacharacters into a shell command string via sprintf() and passes it to system() without sanitization, enabling root-level command execution on the device.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Apache Airflow SSH provider: SSHRemoteJobOperator: `environment` values are executed as shell on the remote hostAlso CWE-78

Record context

Vulnerability class
Command Injection
EPSS
Not reported
CWE IDs
CWE-78
Source
CVE List V5
Source checked
Oct 27, 2026
References
3 linked sources
Open source record