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CVE record · CVE-2026-89009

WAVLINK WN535M1/WN535M3 Unauthenticated Arbitrary File Write via sync_server

CVSS 8.8 HighEPSS 0.010 · 63rd percentile

Published by the CVE Program (CNA: VulnCheck) at 11 Sept 2026, 14:56 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
WAVLINK Technology WN535M1
  • affected M35M1_V210223 custom
  • unaffected M35M1_V250922 custom
Other versions: unaffected
WAVLINK Technology WN535M3
  • affected M35M1_V210223 custom
  • unaffected M35M1_V250922 custom
Other versions: unaffected
Identifiers
CVE-2026-89009
CNA
VulnCheck
Weakness (CWE)
CWE-36
Tags
Published
11 Sept 2026
Updated
29 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.8 High 4.0 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 CNA (VulnCheck)Used for this record
9.1 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.010, the 63rd percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 11 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.