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CVE-2015-4464: Kguard Digital Video Recorder 104, 108, v2 does not have any authorization or authentication between an Active

67
This week
CRITICAL 9.8REMOTEMITIGATEMITIGATE

CVE-2015-4464 is a critical-severity flaw (CVSS 9.8) affecting kg-sha104 firmware, kg-sha108 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Kguard Digital Video Recorder 104, 108, v2 does not have any authorization or authentication between an ActiveX client and the application server.

Why this priority

  • Critical severity
  • EPSS top 8%: very likely to be exploited
  • Public exploit reference
  • Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score9.8 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance4.7% (top 8%)
CISA exploited listNo
WeaknessCWE-287
Published2017-08-18
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: kguardsecurity

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

kguardsecurity kg-sha104 firmware MITIGATE
Affected: 2.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 2.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
kguardsecurity kg-sha108 firmware MITIGATE
Affected: 2.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 2.0
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-4464?

kg-sha104 firmware: mitigate or apply the listed mitigation; kg-sha108 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-4464 being exploited?

CVE-2015-4464 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-4464 affect?

CVE-2015-4464 affects kg-sha104 firmware, kg-sha108 firmware. Severity is critical (CVSS 9.8). Kguard Digital Video Recorder 104, 108, v2 does not have any authorization or authentication between an ActiveX client and the application server.

How urgent is CVE-2015-4464?

Priority 67/100. Critical severity; EPSS top 8%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

References

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