← gociux.comall exploited CVEs

Exploited vulnerability · CISA KEV

Is CVE-2017-7921 exploited? Yes: in CISA KEV since 5 Mar 2026

Gociux · Hikvision Multiple Products · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2017-7921, Hikvision Multiple Products Improper Authentication Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 5 Mar 2026, 3225 days after it was published. It affects Hikvision Multiple Products. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 5 Mar 2026
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due26 Mar 2026BOD 22-01 deadline

What it is

Multiple Hikvision products contain an improper authentication vulnerability that could allow a malicious user to escalate privileges on the system and gain access to sensitive information.

VendorHikvision (2 exploited CVEs in KEV)
ProductMultiple Products
VulnerabilityHikvision Multiple Products Improper Authentication Vulnerability
WeaknessCWE-287
Published6 May 2017
Added to KEV5 Mar 2026
Reported by (CNA)icscert

What to do

  1. Check whether you run it. Look for Multiple Products in your asset inventory, including appliances and cloud images. Stack check lists every exploited Hikvision CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 6 May 2017.
  4. Get told next time. Email alerts when CISA adds a CVE for Hikvision.

References

Questions

Is CVE-2017-7921 being exploited?

Yes. CISA added CVE-2017-7921 to the Known Exploited Vulnerabilities catalog on 5 Mar 2026, which means there is reliable evidence of exploitation in the wild.

Is CVE-2017-7921 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2017-7921?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check Hikvision's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Multiple Products and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in March 2026 · Hikvision scorecard · act-now radar.

Running Hikvision in a regulated environment?

We check exposure across your estate, patch or mitigate with your team, and set up detection for what attackers do after exploiting it.

Get in touch →