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CVE-2021-33044

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Selected cve

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.

39 retained evidence references · snapshot-bound · open authoritative view

StateSource-scoped evidence

Priority92.1–92.9

Coverage99.3%

Connections39

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Evidence state

identity unresolved
known present
source constrained
evidence unknown

Snapshot-bound reason tuple

Last verified source snapshot retainedfactor_a_kev

The admitted source contract constrains coverage for this claim.

Revision: evidence-policy-v1.1.0
Cutoff: 2026-10-22T18:07:53.945Z
Resolution: Review source contract

Evidence supportedfactor_b_epss

Eligible evidence is present for this bounded claim.

Revision: evidence-policy-v1.1.0
Cutoff: 2026-10-22T18:07:53.945Z
Resolution: None

Evidence supportedfactor_c_cvss

Eligible evidence is present for this bounded claim.

Revision: casca-direct-cvss-eligibility-v1
Cutoff: 2026-10-22T18:07:53.945Z
Resolution: None

Source-reported scopefactor_d_breadth

The source assertion is retained, but its canonical identity is unresolved.

Revision: casca-factor-d-obligations-v1
Cutoff: 2026-10-22T18:07:53.945Z
Resolution: Resolve identity

Connections 39

has cited scope1 retained · stored CVE-2021-33044 → n/a · Some Dahua IP Camera, Video Intercom, PTZ Dome Camera, Thermal Camera devices

05de21b4-faa2-493e-9513-9c9314211652

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-bf5x21

5fda5fe4-13fd-4ebe-9d29-7a1804e60d8a

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · vto-75x95x

56371f1f-4993-488b-ad02-0449d6750f9b

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · ipc-hum7xxx

d5fb8937-43fc-4dcc-a823-eac43b22882a

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · sd49

6ebce904-446a-4bef-8720-6d5a4729b806

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · vth-542xh

d791319d-4ae7-463d-88e5-78e6777adcc5

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · ipc-hx5xxx

5a13f767-6654-437f-8444-3e302145d914

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-bf1241

ef8b6810-3050-4491-953e-520a0e7affe5

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-sd2221

770a9541-1d2d-4311-a54d-d24e0115f059

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · vto-65xxx

b32228c2-11bb-4600-b48c-bedd3b0de093

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · sd22

aa263842-3f0c-4322-bf28-dc5b75e45645

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-pt8x21b

57a8b4ba-515f-4ca4-b112-5970279f0523

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-bf2221

36553796-1545-42cb-80a6-e8050c7321c8

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-sd8x21

fc64158a-9707-44f6-916f-1cd9703aad05

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · ipc-hx3xxx

51dba988-727c-40cd-9c73-c5661e142298

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · sd50

0bdf4fbe-d88d-4492-97e7-4b232f46b59e

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-bf5x01

02707dba-f425-4cb9-a5a6-086b284145f8

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · sd52c

bc3e1d1e-c2e9-4fa9-86b8-740484b93146

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · sd6al

44209693-3e1e-4d19-b163-08ab8e244d76

has environmental constraint1 retained · stored CVE-2021-33044 → dahuasecurity · sd1a1

388371b0-6cca-4be2-9255-95587e49adec

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · vto-65xxx_firmware

ae3d96f9-797b-4b51-92c6-ea37fd516588

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · sd22_firmware

9c063c79-efd0-44e2-9d62-1c3c967d9491

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · sd6al_firmware

07211299-fc33-4f70-a0aa-e62050c0bb7c

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-bf5x01_firmware

c50f5374-e251-47cf-a705-2b0ec9755f47

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-bf2221_firmware

67d27bfa-00e9-4a7c-9f24-093ab9de31d2

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · sd49_firmware

49e88b77-e498-4eea-ac87-dfb0483d807e

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-sd2221_firmware

a144b2c8-7429-4531-8f1c-6d03d21d9ede

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · ipc-hum7xxx_firmware

e497b64e-e223-40f3-a2b1-712bad1f1a42

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-pt8x21b_firmware

a4bfd368-3ce6-4d33-b2af-9ef5c5c8f6da

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · ipc-hx3xxx_firmware

7c6a4477-17be-4992-bcee-ad161ebfe4fa

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · sd50_firmware

d126cd96-4ec6-4ce6-b2e5-14540c9d15d5

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-bf1241_firmware

1169ce4f-7d45-4857-9acd-56ffe40da130

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · ipc-hx5xxx_firmware

9c6b521d-1153-4056-983f-f6cc2857a9d5

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · vth-542xh_firmware

62f1b751-8251-4d86-b48a-5a5b82e85fcc

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-bf5x21_firmware

28ef3e88-da2f-4521-bca0-a61019bfe644

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · sd52c_firmware

e4651543-0921-4103-8503-9eb46201df66

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · vto-75x95x_firmware

b098973e-9b9a-4a34-9b1e-7dd610a8da00

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · sd1a1_firmware

18e838c7-a3d1-490d-8852-799513cc63d5

has vulnerable target scope1 retained · stored CVE-2021-33044 → dahuasecurity · tpc-sd8x21_firmware

539880c5-f492-47b4-8922-44a674883ec9

Focused snapshot evidence neighborhood.

CVEProductSignalSelected / traceVisual proximity carries zero evidence weight.

Data as of

Evidence current through Oct 22, 2026, 6:07 PM UTC · 40 entities · 39 relationships · bounded complete