CVE-2026-52656
Arbitrary code execution in SJCAM/AllWinner SJ4000-Air via crafted FEX file.
Is CVE-2026-52656 being exploited?
Not confirmed. CVE-2026-52656 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 0.73% probability of exploitation in the next 30 days.
How severe is CVE-2026-52656?
CVE-2026-52656 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-2026-52656?
Not known from our data. No patch reference has been recorded for CVE-2026-52656, 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-2026-52656 affect?
CVE-2026-52656 affects SJCAM SJ4000-Air firmware <= v1.4C, Whitelabel devices based on SJ4000-Air v1.4C and earlier, AllWinner Tech SJ4000-Air series. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-52656?
Isolate affected cameras, disable FEX/file uploads, restrict network access; apply vendor firmware when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Arbitrary code execution from a crafted FEX file, enabling device takeover, persistence, malware install and lateral movement into networks.
Immediate action required