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CVE-2024-39950: A vulnerability has been found in Dahua products

46
This month
HIGH 8.6REMOTEUPGRADEMITIGATEUPGRADE

CVE-2024-39950 is a high-severity flaw (CVSS 8.6) affecting nvr4104-4ks2\/l firmware, nvr4108-4ks2\/l firmware, nvr4116-4ks2\/l firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability has been found in Dahua products. Attackers can send carefully crafted data packets to the interface with vulnerabilities to initiate device initialization.

Why this priority

  • High severity
  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score8.6 (High)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.5% (top 58%)
CISA exploited listNo
WeaknessCWE-121, CWE-20
Published2024-07-31
Last modified2026-06-17
Publisher (CNA): Dahua Technologies · Vendor: dahuasecurity

Share: LinkedIn · X · Reddit

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

Am I affected?

Timeline

dahuasecurity nvr4104-4ks2\/l firmware UPGRADE
Affected: < 4.003.0000000.1.r.240515
Fixed in: 4.003.0000000.1.r.240515
Safe to downgrade to: no unaffected older release
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.
dahuasecurity nvr4108-4ks2\/l firmware MITIGATE
Affected: 4.003.0000000.1.r.240515
Fixed in: no fixed release known
Safe to downgrade to: a release before 4.003.0000000.1.r.240515
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.
dahuasecurity nvr4116-4ks2\/l firmware UPGRADE
Affected: < 4.003.0000000.1.r.240515
Fixed in: 4.003.0000000.1.r.240515
Safe to downgrade to: no unaffected older release
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.
dahuasecurity nvr4104-p-4ks2\/l firmware UPGRADE
Affected: < 4.003.0000000.1.r.240515
Fixed in: 4.003.0000000.1.r.240515
Safe to downgrade to: no unaffected older release
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.
dahuasecurity nvr4108-p-4ks2\/l firmware UPGRADE
Affected: < 4.003.0000000.1.r.240515
Fixed in: 4.003.0000000.1.r.240515
Safe to downgrade to: no unaffected older release
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.
dahuasecurity nvr4108-8p-4ks2\/l firmware UPGRADE
Affected: < 4.003.0000000.1.r.240515
Fixed in: 4.003.0000000.1.r.240515
Safe to downgrade to: no unaffected older release
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-2024-39950?

nvr4104-4ks2\/l firmware: upgrade to 4.003.0000000.1.r.240515; nvr4108-4ks2\/l firmware: mitigate or apply the listed mitigation; nvr4116-4ks2\/l firmware: upgrade to 4.003.0000000.1.r.240515. Exact commands for each OS are on this page.

Is CVE-2024-39950 being exploited?

CVE-2024-39950 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-2024-39950 affect?

CVE-2024-39950 affects nvr4104-4ks2\/l firmware, nvr4108-4ks2\/l firmware, nvr4116-4ks2\/l firmware. Severity is high (CVSS 8.6). A vulnerability has been found in Dahua products. Attackers can send carefully crafted data packets to the interface with vulnerabilities to initiate device initialization.

How urgent is CVE-2024-39950?

Priority 46/100. High severity; Remotely exploitable, no login, no user action

Software pages

Dahua vulnerabilities

Related CVEs

References

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