CVE-2026-3703
Remote out-of-bounds write in Wavlink login.cgi via ipaddr.
Is CVE-2026-3703 being exploited?
Not confirmed. CVE-2026-3703 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.82% probability of exploitation in the next 30 days.
How severe is CVE-2026-3703?
CVE-2026-3703 is rated High with a CVSS score of 8.9. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-3703?
Yes. A fix has been recorded for CVE-2026-3703. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-3703 affect?
CVE-2026-3703 affects Wavlink NU516U1 251208 router. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-3703?
Apply vendor patch/firmware update immediately.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker could trigger out-of-bounds write via ipaddr in login.cgi, potentially device compromise.
Patch when possible
- affected251208
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.