Vulnerability Intelligence Report
Dahua IP Camera Authentication Bypass Vulnerability
CVE-2021-33044
The identity authentication bypass vulnerability found in some Dahua products during the login process. Attackers can bypass device identity authentication by constructing malicious data packets.
CISA KEV
Nuclei Template
SSVC: Active Exploitation
Automatable
CVSS Base Score
9.8
CRITICAL
Exploitability:3.9
Impact Score:5.9
EPSS Probability:99.87%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-287 ↗CWE-287 Improper Authentication
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| dahuasecurity | ipc-hum7xxx_firmware | all |
| dahuasecurity | ipc-hum7xxx | all |
| dahuasecurity | ipc-hx3xxx_firmware | all |
| dahuasecurity | ipc-hx3xxx | all |
| dahuasecurity | ipc-hx5xxx_firmware | all |
| dahuasecurity | ipc-hx5xxx | all |
| dahuasecurity | sd1a1_firmware | all |
| dahuasecurity | sd1a1 | all |
| dahuasecurity | sd22_firmware | all |
| dahuasecurity | sd22 | all |
| dahuasecurity | sd49_firmware | all |
| dahuasecurity | sd49 | all |
| dahuasecurity | sd50_firmware | all |
| dahuasecurity | sd50 | all |
| dahuasecurity | sd52c_firmware | all |
| dahuasecurity | sd52c | all |
| dahuasecurity | sd6al_firmware | all |
| dahuasecurity | sd6al | all |
| dahuasecurity | tpc-bf1241_firmware | all |
| dahuasecurity | tpc-bf1241 | all |
| dahuasecurity | tpc-bf2221_firmware | all |
| dahuasecurity | tpc-bf2221 | all |
| dahuasecurity | tpc-bf5x01_firmware | all |
| dahuasecurity | tpc-bf5x01 | all |
| dahuasecurity | tpc-pt8x21b_firmware | all |
| dahuasecurity | tpc-pt8x21b | all |
| dahuasecurity | tpc-sd2221_firmware | all |
| dahuasecurity | tpc-sd2221 | all |
| dahuasecurity | tpc-sd8x21_firmware | all |
| dahuasecurity | tpc-sd8x21 | all |
| dahuasecurity | vto-65xxx_firmware | all |
| dahuasecurity | vto-65xxx | all |
| dahuasecurity | vto-75x95x_firmware | all |
| dahuasecurity | vto-75x95x | all |
| dahuasecurity | vth-542xh_firmware | all |
| dahuasecurity | vth-542xh | all |
| dahuasecurity | tpc-bf5x21_firmware | all |
| dahuasecurity | tpc-bf5x21 | all |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
CISA KEV
ACTIVE IN CATALOG
Nuclei Template
SCANNER AVAILABLE
EPSS Score
99.871%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Dahua Technologies · Vendor · China |
| Reserved | 2021-05-17T00:00:00 |
| Published | 2021-09-15T21:36:04 |
| Last Updated | 2026-01-12T19:53:16 |
Community Chatter & Buzz