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Exploited vulnerability · CISA KEV

Is CVE-2023-47565 exploited? Yes: in CISA KEV since 21 Dec 2023

Gociux · QNAP VioStor NVR · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2023-47565, QNAP VioStor NVR OS Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 21 Dec 2023, 13 days after it was published. It affects QNAP VioStor NVR. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 21 Dec 2023
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity8CVSS 3.1 · high
US federal due11 Jan 2024BOD 22-01 deadline

What it is

QNAP VioStar NVR contains an OS command injection vulnerability that allows authenticated users to execute commands via a network.

VendorQNAP (11 exploited CVEs in KEV)
ProductVioStor NVR
VulnerabilityQNAP VioStor NVR OS Command Injection Vulnerability
WeaknessCWE-78
Published8 Dec 2023
Added to KEV21 Dec 2023
Reported by (CNA)qnap

What to do

  1. Check whether you run it. Look for VioStor NVR in your asset inventory, including appliances and cloud images. Stack check lists every exploited QNAP CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions 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 8 Dec 2023.
  4. Get told next time. Email alerts when CISA adds a CVE for QNAP.

References

Questions

Is CVE-2023-47565 being exploited?

Yes. CISA added CVE-2023-47565 to the Known Exploited Vulnerabilities catalog on 21 Dec 2023, which means there is reliable evidence of exploitation in the wild.

Is CVE-2023-47565 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-2023-47565?

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check QNAP's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected VioStor NVR 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 December 2023 · QNAP scorecard · act-now radar.

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