CVE-2026-52533
Local privilege escalation to root via /etc/shadow on D-Link DIR-1253 routers.
Is CVE-2026-52533 being exploited?
Not confirmed. CVE-2026-52533 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 0.60% probability of exploitation in the next 30 days.
How severe is CVE-2026-52533?
CVE-2026-52533 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-2026-52533?
Yes. A fix has been recorded for CVE-2026-52533. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-52533 affect?
CVE-2026-52533 affects D-Link DIR-1253 (firmware v1.0.1.250923.142435). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-52533?
Isolate devices, block remote management, change credentials, apply vendor firmware when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Privilege escalation to root by modifying /etc/shadow, enabling account takeover and persistent privileged access.
Immediate action required