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  4. CVE 2026 120345 wavlink wn551x3 a dns resolution ioos sub41a430
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Back to active CVEs
Critical · CVSS 10.0CVE-2026-120345

WAVLINK WN551X3-A DNS Resolution ioos sub_41a430 os command injectionCVE-2026-120345

Answer in brief

CVE-2026-120345 records a Critical severity (CVSS 10.0) vulnerability in WAVLINK WN551X3-A DNS Resolution ioos sub_41a430 os command injection. The current sources do not mark it as known exploited. The current feed maps WAVLINK/WN551X3-A (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 Nov 2, 2026Updated Nov 2, 2026Source checked Nov 2, 2026First seen by HOL Nov 2, 2026Material review Nov 2, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 10.0
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 10.0. 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/WN551X3-A (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
WAVLINK/WN551X3-AgenericM51X3_V251020-WO-182e965Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for WAVLINK/WN551X3-A.
  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

    Nov 2, 2026

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

  2. Source modified

    Nov 2, 2026

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

  3. First seen by HOL

    Nov 2, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
  • Source referencevuldb.com
Upstream source description

A vulnerability was found in WAVLINK WN551X3-A M51X3_V251020-WO-182e965. This impacts the function sub_41a430 of the file /bin/ioos of the component DNS Resolution Handler. Performing a manipulation of the argument data results in os command injection. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WAVLINK WN551X3-A WireGuard CLI Group ioos system os command injectionSame wavlink/wn551x3-a package
  • Shanghai Xi Yu Ji Zhi Technology Minimax Code Find os command injectionAlso CWE-78
  • WAVLINK WN536AX6-A Web Management ioos sub_416760 os command injectionAlso CWE-78
  • WAVLINK WN536AX6-A WireGuard CLI Group ioos sub_41a1d8 os command injectionAlso CWE-78
  • WAVLINK WN536AX6-A openvpn_cli protocol.csp os command injectionAlso CWE-78
  • WAVLINK WN536AX6-A WireGuard protocol.csp wireguard_cli_group handler os command injectionAlso CWE-78

Record context

Vulnerability class
Command Injection
EPSS
Not reported
CWE IDs
CWE-78, CWE-77
Source
CVE List V5
Source checked
Nov 2, 2026
References
5 linked sources
Open source record