Improper Initialization vulnerability in local server authentication logic
Description
Local attacker can read encrypted admin password from memory due to improper initialization in EZVIZ CS-C6N-A0-1C2WFR cameras before firmware 5.3.0 build 220428.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Local attacker can read encrypted admin password from memory due to improper initialization in EZVIZ CS-C6N-A0-1C2WFR cameras before firmware 5.3.0 build 220428.
Vulnerability
The local server component of EZVIZ CS-C6N-A0-1C2WFR cameras contains an Improper Initialization vulnerability that results in uninitialized memory containing the encrypted administrator password. Affected firmware versions are those prior to 5.3.0 build 220428 [1].
Exploitation
A local attacker with physical or local network access to the device can read the contents of the memory space where the encrypted admin password is stored. No authentication or user interaction is required; the attacker simply needs to access the vulnerable local server component [1].
Impact
Successful exploitation allows the attacker to recover the encrypted administrator password, which can then be decrypted to gain full administrative control over the device, leading to complete compromise of the camera [1].
Mitigation
The vulnerability is fixed in firmware version 5.3.0 build 220428. Users should update their cameras to this version or later. No workarounds have been published, and the device is not listed on CISA's KEV [1].
AI Insight generated on May 26, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- EZVIZ/CS-C6N-A0-1C2WFRv5Range: unspecified
Patches
0No patches discovered yet.
Vulnerability mechanics
Root cause
"Improper initialization of memory allows a local attacker to read the encrypted admin password from the local server's memory space."
Attack vector
A local attacker with physical or local network access to the camera can exploit improper memory initialization to read the memory space containing the encrypted administrator password [ref_id=1]. Because the memory region is not properly zeroed or reinitialized, the encrypted password remains recoverable from memory. Once the attacker obtains the encrypted password, they can potentially decrypt it offline and gain full administrative control of the device [ref_id=1].
Affected code
The vulnerability resides in the local server component of the EZVIZ CS-C6N-A0-1C2WFR camera firmware. The advisory does not specify a particular function or file path, but identifies the issue as an "Improper Initialization vulnerability" in the local server that handles authentication data [ref_id=1].
What the fix does
The advisory states that EZVIZ confirmed the fix and that updates were rolling out to vulnerable devices as of June 2022 [ref_id=1]. The fix addresses the improper initialization by ensuring the memory region containing the encrypted admin password is properly cleared or reinitialized so that it cannot be read by a local attacker. The recommended remediation is to update the firmware to version 5.3.0 build 220428 or later [ref_id=1].
Preconditions
- networkAttacker must have local or physical access to the camera
- configCamera must be running firmware prior to 5.3.0 build 220428
Generated on May 26, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
1- www.bitdefender.com/blog/labs/vulnerabilities-identified-in-ezviz-smart-camsmitrex_refsource_MISC
News mentions
0No linked articles in our index yet.