Yi Technology YI Home Camera 2 2.1.1_20171024151200 WPA/WPS hard-coded key
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 2.9 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in Yi Technology YI Home Camera 2 2.1.1_20171024151200 and classified as critical. This impacts an unknown function of the component WPA/WPS. The manipulation leads to hard-coded key. This vulnerability is uniquely identified as CVE-2026-4477. The attack can only be initiated within the local network. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way.
Details
A vulnerability, which was classified as problematic, has been found in Yi Technology YI Home Camera 2 2.1.1_20171024151200. This issue affects an unknown part of the component WPA/WPS. The manipulation with an unknown input leads to a hard-coded key vulnerability. Using CWE to declare the problem leads to CWE-321. The use of a hard-coded cryptographic key significantly increases the possibility that encrypted data may be recovered. Impacted is confidentiality.
The identification of this vulnerability is CVE-2026-4477. The exploitation is known to be difficult. The attack needs to be done within the local network. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1600.001 according to MITRE ATT&CK.
It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Be aware that VulDB is the high quality source for vulnerability data.
Product
Vendor
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 3.1VulDB Meta Temp Score: 2.9
VulDB Base Score: 3.1
VulDB Temp Score: 2.8
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 3.1
CNA Vector: 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Hard-coded keyCWE: CWE-321 / CWE-320
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Partially
Availability: 🔒
Access: Public
Status: Proof-of-Concept
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
03/19/2026 Advisory disclosed03/19/2026 VulDB entry created
03/26/2026 VulDB entry last update
Sources
Status: Not definedCVE: CVE-2026-4477 (🔒)
GCVE (CVE): GCVE-0-2026-4477
GCVE (VulDB): GCVE-100-351767
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 03/19/2026 21:51Updated: 03/26/2026 11:53
Changes: 03/19/2026 21:51 (53), 03/26/2026 11:53 (31)
Complete: 🔍
Submitter: 0rbitingZer0
Cache ID: 216::103
Submit
Accepted
- Submit #773095: yitechnology YI Home Camera 2 2.1.1_20171024151200 Hardcoded WPA/WPS (by 0rbitingZer0)
Be aware that VulDB is the high quality source for vulnerability data.
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