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CVE-2026-89010 (GCVE-0-2026-89010)

Vulnerability from nvd – Published: 2026-09-11 14:57 – Updated: 2026-09-11 16:16 Unsupported When Assigned

Title

WAVLINK WN535M1/WN535M3 Unauthenticated OS Command Injection via sync_server

Summary

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.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-11 16:15 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/camdsmith/wavlink-sync_server-…	technical-descriptionexploit
https://docs.wavlink.xyz/	productpatch
https://www.vulncheck.com/advisories/wavlink-wn53…	third-party-advisory

Impacted products

2 products

Vendor	Product	Version
WAVLINK Technology	WN535M1	Affected: M35M1_V210223 (custom) Unaffected: M35M1_V250922 (custom)
WAVLINK Technology	WN535M3	Affected: M35M1_V210223 (custom) Unaffected: M35M1_V250922 (custom)

Date Public

2026-08-11 00:00

Credits

Cameron Smith

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-89010",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
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                    "Technical Impact": "total"
                  }
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                "timestamp": "2026-09-11T16:15:46.679517Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
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    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WN535M1",
          "vendor": "WAVLINK Technology",
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              "versionType": "custom"
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          "defaultStatus": "unaffected",
          "product": "WN535M3",
          "vendor": "WAVLINK Technology",
          "versions": [
            {
              "status": "affected",
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              "version": "M35M1_V250922",
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          "lang": "en",
          "type": "finder",
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          "value": "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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      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
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            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
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          "descriptions": [
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              "cweId": "CWE-78",
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          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-11T14:58:59.087Z",
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        },
        {
          "name": "WAVLINK ROUTER-Center",
          "tags": [
            "product",
            "patch"
          ],
          "url": "https://docs.wavlink.xyz/"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/wavlink-wn535m1-wn535m3-unauthenticated-os-command-injection-via-sync-server"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "tags": [
        "unsupported-when-assigned"
      ],
      "title": "WAVLINK WN535M1/WN535M3 Unauthenticated OS Command Injection via sync_server",
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        "engine": "vulncheck"
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  "cveMetadata": {
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-89010",
    "datePublished": "2026-09-11T14:57:56.223Z",
    "dateReserved": "2026-09-10T16:23:54.470Z",
    "dateUpdated": "2026-09-11T16:16:03.207Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-89009 (GCVE-0-2026-89009)

Vulnerability from nvd – Published: 2026-09-11 14:56 – Updated: 2026-09-11 14:57 Unsupported When Assigned

Title

WAVLINK WN535M1/WN535M3 Unauthenticated Arbitrary File Write via sync_server

Summary

WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1_V250922 contain an unauthenticated arbitrary file write vulnerability that allows remote attackers to overwrite any file on the device by sending a crafted payload to the sync_server daemon on TCP port 13136. The daemon, which runs as root and requires no authentication, accepts a 100-byte filename field in its protocol header without path canonicalization, allowing attackers to supply an absolute path and write arbitrary content to overwrite startup scripts or credential stores to achieve persistent system compromise.

Severity

8.8 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CWE

CWE-36 - Absolute Path Traversal

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/camdsmith/wavlink-sync_server-…	technical-descriptionexploit
https://docs.wavlink.xyz/	productpatch
https://www.vulncheck.com/advisories/wavlink-wn53…	third-party-advisory

Impacted products

2 products

Vendor	Product	Version
WAVLINK Technology	WN535M1	Affected: M35M1_V210223 (custom) Unaffected: M35M1_V250922 (custom)
WAVLINK Technology	WN535M3	Affected: M35M1_V210223 (custom) Unaffected: M35M1_V250922 (custom)

Date Public

2026-08-11 00:00

Credits

Cameron Smith

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WN535M1",
          "vendor": "WAVLINK Technology",
          "versions": [
            {
              "status": "affected",
              "version": "M35M1_V210223",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "M35M1_V250922",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "WN535M3",
          "vendor": "WAVLINK Technology",
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              "version": "M35M1_V210223",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "M35M1_V250922",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Cameron Smith"
        }
      ],
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          "lang": "en",
          "value": "WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1_V250922 contain an unauthenticated arbitrary file write vulnerability that allows remote attackers to overwrite any file on the device by sending a crafted payload to the sync_server daemon on TCP port 13136. The daemon, which runs as root and requires no authentication, accepts a 100-byte filename field in its protocol header without path canonicalization, allowing attackers to supply an absolute path and write arbitrary content to overwrite startup scripts or credential stores to achieve persistent system compromise."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
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              "lang": "en",
              "value": "GENERAL"
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          ],
          "url": "https://docs.wavlink.xyz/"
        },
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            "third-party-advisory"
          ],
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        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "tags": [
        "unsupported-when-assigned"
      ],
      "title": "WAVLINK WN535M1/WN535M3 Unauthenticated Arbitrary File Write via sync_server",
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        "engine": "vulncheck"
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  "cveMetadata": {
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}

CVE-2026-89010 (GCVE-0-2026-89010)

Vulnerability from cvelistv5 – Published: 2026-09-11 14:57 – Updated: 2026-09-11 16:16 Unsupported When Assigned

Title

WAVLINK WN535M1/WN535M3 Unauthenticated OS Command Injection via sync_server

Summary

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.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-11 16:15 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/camdsmith/wavlink-sync_server-…	technical-descriptionexploit
https://docs.wavlink.xyz/	productpatch
https://www.vulncheck.com/advisories/wavlink-wn53…	third-party-advisory

Impacted products

2 products

Vendor	Product	Version
WAVLINK Technology	WN535M1	Affected: M35M1_V210223 (custom) Unaffected: M35M1_V250922 (custom)
WAVLINK Technology	WN535M3	Affected: M35M1_V210223 (custom) Unaffected: M35M1_V250922 (custom)

Date Public

2026-08-11 00:00

Credits

Cameron Smith

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-89010",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
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                    "Automatable": "yes"
                  },
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                    "Technical Impact": "total"
                  }
                ],
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                "timestamp": "2026-09-11T16:15:46.679517Z",
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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      }
    ],
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        {
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          "product": "WN535M1",
          "vendor": "WAVLINK Technology",
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              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "M35M1_V250922",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          ]
        }
      ],
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          ]
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      ],
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        "unsupported-when-assigned"
      ],
      "title": "WAVLINK WN535M1/WN535M3 Unauthenticated OS Command Injection via sync_server",
      "x_generator": {
        "engine": "vulncheck"
      }
    }
  },
  "cveMetadata": {
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-89010",
    "datePublished": "2026-09-11T14:57:56.223Z",
    "dateReserved": "2026-09-10T16:23:54.470Z",
    "dateUpdated": "2026-09-11T16:16:03.207Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-89009 (GCVE-0-2026-89009)

Vulnerability from cvelistv5 – Published: 2026-09-11 14:56 – Updated: 2026-09-11 14:57 Unsupported When Assigned

Title

WAVLINK WN535M1/WN535M3 Unauthenticated Arbitrary File Write via sync_server

Summary

WAVLINK WN535M1 and WN535M3 routers running firmware prior to M35M1_V250922 contain an unauthenticated arbitrary file write vulnerability that allows remote attackers to overwrite any file on the device by sending a crafted payload to the sync_server daemon on TCP port 13136. The daemon, which runs as root and requires no authentication, accepts a 100-byte filename field in its protocol header without path canonicalization, allowing attackers to supply an absolute path and write arbitrary content to overwrite startup scripts or credential stores to achieve persistent system compromise.

Severity

8.8 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CWE

CWE-36 - Absolute Path Traversal

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/camdsmith/wavlink-sync_server-…	technical-descriptionexploit
https://docs.wavlink.xyz/	productpatch
https://www.vulncheck.com/advisories/wavlink-wn53…	third-party-advisory

Impacted products

2 products

Vendor	Product	Version
WAVLINK Technology	WN535M1	Affected: M35M1_V210223 (custom) Unaffected: M35M1_V250922 (custom)
WAVLINK Technology	WN535M3	Affected: M35M1_V210223 (custom) Unaffected: M35M1_V250922 (custom)

Date Public

2026-08-11 00:00

Credits

Cameron Smith

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WN535M1",
          "vendor": "WAVLINK Technology",
          "versions": [
            {
              "status": "affected",
              "version": "M35M1_V210223",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "M35M1_V250922",
              "versionType": "custom"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
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          "versions": [
            {
              "status": "affected",
              "version": "M35M1_V210223",
              "versionType": "custom"
            },
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              "version": "M35M1_V250922",
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          ]
        }
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        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
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            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N",
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            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "scenarios": [
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              "lang": "en",
              "value": "GENERAL"
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
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          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
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          "descriptions": [
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              "cweId": "CWE-36",
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              "type": "CWE"
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      "providerMetadata": {
        "dateUpdated": "2026-09-11T14:57:08.436Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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          "name": "Researcher Disclosure",
          "tags": [
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          "url": "https://github.com/camdsmith/wavlink-sync_server-rce/blob/main/README.md"
        },
        {
          "name": "WAVLINK ROUTER-Center",
          "tags": [
            "product",
            "patch"
          ],
          "url": "https://docs.wavlink.xyz/"
        },
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/wavlink-wn535m1-wn535m3-unauthenticated-arbitrary-file-write-via-sync-server"
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      ],
      "source": {
        "discovery": "UNKNOWN"
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      "tags": [
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  },
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}

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4 vulnerabilities by WAVLINK Technology

CVE-2026-89010 (GCVE-0-2026-89010)

CVE-2026-89009 (GCVE-0-2026-89009)

CVE-2026-89010 (GCVE-0-2026-89010)

CVE-2026-89009 (GCVE-0-2026-89009)

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4 vulnerabilities by WAVLINK Technology

CVE-2026-89010 (GCVE-0-2026-89010)

CVE-2026-89009 (GCVE-0-2026-89009)

CVE-2026-89010 (GCVE-0-2026-89010)

CVE-2026-89009 (GCVE-0-2026-89009)

Search criteria ⓘ Use this form to refine search results.
Full-text search supports keyword queries with ranking and filtering.
You can combine vendor, product, and sources to narrow results.
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