Widely deployed Hikvision IP cameras; privilege escalation could disrupt surveillance operations across multiple industries.
CVE-2017-7921
Privilege escalation via improper authentication on Hikvision IP cameras
Is CVE-2017-7921 being exploited?
Yes. CVE-2017-7921 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2017-7921?
CVE-2017-7921 is rated Critical with a CVSS score of 10.0. 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-2017-7921?
Yes. A fix has been recorded for CVE-2017-7921. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2017-7921 affect?
CVE-2017-7921 affects Hikvision IP cameras (DS-2CD2xx2F-I, DS-2CD2xx0F-I, DS-2CD2xx2FWD, DS-2CD4x2xFWD, DS-2CD4xx5, DS-2DFx, DS-2CD63xx). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2017-7921?
Update firmware to latest per vendor guidance
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Admin-level access on affected cameras; view/download video, override settings
Immediate action required
- affectedHikvision Cameras
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.