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CVE-2026-89010Patch

LOWCVSS 9.3 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-78

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 2 signals
  • Peaked 1d ago at 1 mentions (2026-09-11); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-09-11: 1Mentions · 2026-09-12: 1Patch / Workaround · 2026-09-11: 1Patch / Workaround · 2026-09-12: 1Technical Details · 2026-09-11: 1Technical Details · 2026-09-12: 109-1109-12
Signal classification1 categories
Patch
2100.0%
Referenced assets1 URL
Full discourse2 posts
  • Rıdvan Yağlı@ridvanyagli
    Patch

    🔴 WAVLINK router'larında kritik güvenlik açığı: CVE-2026-89010 WAVLINK WN535M1 ve WN535M3 modellerinde, kimlik doğrulama gerektirmeyen OS Command Injection açığı bulunuyor. CVSS 9.8 (Critical) Uzaktan tetiklenebiliyor Kimlik doğrulama gerektirmiyor Komutlar root yetkisiyle çalıştırılabiliyor. Açık, sync_server servisini etkiliyor. Etkilenen cihazlarda firmware güncellemesi yapılması gerekli.

    Post summary

    WAVLINK WN535M1/M3 routers have a critical OS Command Injection (CVE‑2026‑89010) that allows unauthenticated remote root‑level command execution; a firmware update is required to fix the issue.

    01030272
    2.4K followersView on X
  • ThreatAft@ThreatAft
    Patch

    🚨 WAVLINK ROUTER — PRE-AUTH ROOT RCE CVE-2026-89010: CVSS 9.8 — OS Command Injection CVE-2026-89009: CVSS 9.1 — Arbitrary File Write UPDATE NOW. Block port 13136. → https://threataft.com/articles/wavlink-wn535m1-wn535m3-cve-2026-89010-cve-2026-89009-preauth-rce #WAVLINK #CVE #RCE #SOHO #CVSS9 #PatchNow #CyberSecurity #ThreatIntel

    Post summary

    The tweet alerts to two high‑severity CVEs in WAVLINK routers, provides CVSS scores and flaw types, and recommends blocking port 13136 as a mitigation.

    0000174
    43 followersView on X

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