Answer in brief
CVE-2021-33044 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps n/a/Some Dahua IP Camera, Video Intercom, PTZ Dome Camera, Thermal Camera devices (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps n/a/Some Dahua IP Camera, Video Intercom, PTZ Dome Camera, Thermal Camera devices (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| n/a/Some Dahua IP Camera, Video Intercom, PTZ Dome Camera, Thermal Camera devicesgeneric | Dahua IP Camera devices IPC-HX3XXX, IPC-HX5XXX, and IPC-HUM7XXX, Video Intercom devices VTO75X95X, VTO65XXX, and VTH542XH, PTZ Dome Camera SD1A1, SD22, SD49, SD50, SD52C, and SD6AL, Thermal TPC-BF1241, TPC-BF2221, TPC-SD2221, TPC-BF5XXX, TPC-SD8X21, and TPC-PT8X21B devices Buildtime before June, 2021. | Not reported |
Published upstream
Sep 15, 2021
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jan 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Aug 21, 2024
Evidence: source:kev:kev:kev:recordThe identity authentication bypass vulnerability found in some Dahua products during the login process. Attackers can bypass device identity authentication by constructing malicious data packets.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2021-33044 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps n/a/Some Dahua IP Camera, Video Intercom, PTZ Dome Camera, Thermal Camera devices (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps n/a/Some Dahua IP Camera, Video Intercom, PTZ Dome Camera, Thermal Camera devices (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| n/a/Some Dahua IP Camera, Video Intercom, PTZ Dome Camera, Thermal Camera devicesgeneric | Dahua IP Camera devices IPC-HX3XXX, IPC-HX5XXX, and IPC-HUM7XXX, Video Intercom devices VTO75X95X, VTO65XXX, and VTH542XH, PTZ Dome Camera SD1A1, SD22, SD49, SD50, SD52C, and SD6AL, Thermal TPC-BF1241, TPC-BF2221, TPC-SD2221, TPC-BF5XXX, TPC-SD8X21, and TPC-PT8X21B devices Buildtime before June, 2021. | Not reported |
Published upstream
Sep 15, 2021
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jan 12, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Aug 21, 2024
Evidence: source:kev:kev:kev:recordThe identity authentication bypass vulnerability found in some Dahua products during the login process. Attackers can bypass device identity authentication by constructing malicious data packets.
Quoted source text, attributed separately from HOL analysis.