CVE-2026-82593
Remote stack buffer overflow in D-Link DIR-825M LTE FOTA allowing remote code execution.
Is CVE-2026-82593 being exploited?
Not confirmed. CVE-2026-82593 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 0.51% probability of exploitation in the next 30 days.
How severe is CVE-2026-82593?
CVE-2026-82593 is rated High with a CVSS score of 8.6. 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-2026-82593?
Not known from our data. No patch reference has been recorded for CVE-2026-82593, 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-2026-82593 affect?
CVE-2026-82593 affects D-Link DIR-825M firmware 1.1.8, LTE Module Firmware Upgrade (formLtefotaUpgradeFibocom), sub_41802C fota_url handler. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-82593?
Isolate affected routers, block WAN/admin/FOTA access, monitor, apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote stack-based buffer overflow via fota_url leading to remote code execution, full device compromise and potential network pivot.
Immediate action required
- affected1.1.8
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.