CVE-2026-24103
Buffer overflow in Tenda AC15 formSetMacFilterCfg may allow device compromise.
Is CVE-2026-24103 being exploited?
Not confirmed. CVE-2026-24103 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 0.43% probability of exploitation in the next 30 days.
How severe is CVE-2026-24103?
CVE-2026-24103 is rated Critical with a CVSS score of 9.8. 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-2026-24103?
Not known from our data. No patch reference has been recorded for CVE-2026-24103, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-24103 affect?
CVE-2026-24103 affects Tenda AC15V1.0 V15.03.05.18_multi. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-24103?
Upgrade firmware to patched version when released
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote overflow via crafted request to formSetMacFilterCfg could yield arbitrary code execution on the router.
Patch when possible