CVE-2026-30818
OS command injection in TP-Link Archer AX53 dnsmasq via crafted config.
Is CVE-2026-30818 being exploited?
Not confirmed. CVE-2026-30818 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 1.2% probability of exploitation in the next 30 days.
How severe is CVE-2026-30818?
CVE-2026-30818 is rated High with a CVSS score of 8.5. 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-2026-30818?
Yes. A fix has been recorded for CVE-2026-30818. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-30818 affect?
CVE-2026-30818 affects TP-Link Archer AX53 v1.0 (before 1.7.1 Build 20260213). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-30818?
Update firmware to 1.7.1 Build 20260213
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Adjacent attacker can execute code, modify config, and access data on the device.
Patch when possible
- affected< 1.7.1 Build 20260213
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.