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cve recordhighexploited in the wild3 of 3 cataloguesexploit reported

CVE-2021-33044

Dahua · IP Camera Firmware · Dahua IP Camera Authentication Bypass Vulnerability

· Added to CISA KEV
CVSS—
Severityhigh
Weakness—
EPSS100.0%100.0th percentile
Exploited3 KEV sources
Ransomware useUnknown
Federal fix dueSep 11, 2024
patch window

Called exploited 811 days after disclosure.

Measured from the CVE publication date to the earliest of 3 KEV catalogues that list it.

The life of this vulnerability

  1. CVE published
  2. First KEV listing2.2y
  3. Last KEV listing9mo
  4. Last sighting2.0y

Gaps are compressed to equal steps. The elapsed time is printed under each.

Which catalogues call it exploited

Sources3 of 3
Listings differ by260 d
Strongest claimconfirmed

3 catalogues list it. CIRCL aggregates the others and is shown but not counted.

Public exploitation evidence

587 public reports collected from VulnCheck and CIRCL, first on Dec 5, 2023. Each links to its original source. We have not verified them.

Description

Dahua IP cameras and related products contain an authentication bypass vulnerability when the NetKeyboard type argument is specified by the client during authentication.

Required action (CISA)

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

References

← Back to the CVE Tracker

Our coverage of CVE-2021-33044

CVE-2021-33044high

Hackers Compromised 14,500+ Dahua Devices Using Credential Attacks, Auth Bypasses, and P2P

Cybersecurity researchers have reported a campaign, identified as Operation CameraSwarm, that led to the compromise of more than 14,500 Dahua devices. The activity was observed between June and July 2026. The attackers reportedly leveraged a combination of credential-based attacks, specific authentication bypass vulnerabilities, and a peer-to-peer (P2P) relay method to achieve unauthorized…