In certain EZVIZ products, two stack buffer overflows in netClientSetWlanCfg function of…
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
In certain EZVIZ products, two stack buffer overflows in netClientSetWlanCfg function of the EZVIZ SDK command server can allow an authenticated attacker present on the same local network as the camera to achieve remote code execution. This affects CS-C6N-B0-1G2WF Firmware versions before V5.3.0 build 230215 and CS-C6N-R101-1G2WF Firmware versions before V5.3.0 build 230215 and CS-CV310-A0-1B2WFR Firmware versions before V5.3.0 build 230221 and CS-CV310-A0-1C2WFR-C Firmware versions before V5.3.2 build 230221 and CS-C6N-A0-1C2WFR-MUL Firmware versions before V5.3.2 build 230218 and CS-CV310-A0-3C2WFRL-1080p Firmware versions before V5.2.7 build 230302 and CS-CV310-A0-1C2WFR Wifi IP66 2.8mm 1080p Firmware versions before V5.3.2 build 230214 and CS-CV248-A0-32WMFR Firmware versions before V5.2.3 build 230217 and EZVIZ LC1C Firmware versions before V5.3.4 build 230214. The impact is: execute arbitrary code (remote).
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 18
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:ezviz:cs-c6n-b0-1g2wf_firmware:*:*:*:*:*:*:*:* | up to 5.3.0 | Vulnerable | EZVIZ |
| cpe:2.3:h:ezviz:cs-c6n-b0-1g2wf:-:*:*:*:*:*:*:* | not specified by NVD | Running on | EZVIZ |
| cpe:2.3:o:ezviz:cs-c6n-r101-1g2wf_firmware:*:*:*:*:*:*:*:* | up to 5.3.0 | Vulnerable | EZVIZ |
| cpe:2.3:h:ezviz:cs-c6n-r101-1g2wf:-:*:*:*:*:*:*:* | not specified by NVD | Running on | EZVIZ |
| cpe:2.3:o:ezviz:cs-cv310-a0-1b2wfr_firmware:*:*:*:*:*:*:*:* | up to 5.3.0 | Vulnerable | EZVIZ |
| cpe:2.3:h:ezviz:cs-cv310-a0-1b2wfr:-:*:*:*:*:*:*:* | not specified by NVD | Running on | EZVIZ |
| cpe:2.3:o:ezviz:cs-cv310-a0-1c2wfr-c_firmware:*:*:*:*:*:*:*:* | up to 5.3.2 | Vulnerable | EZVIZ |
| cpe:2.3:h:ezviz:cs-cv310-a0-1c2wfr-c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | EZVIZ |
| cpe:2.3:o:ezviz:cs-c6n-a0-1c2wfr-mul_firmware:*:*:*:*:*:*:*:* | up to 5.3.2 | Vulnerable | EZVIZ |
| cpe:2.3:h:ezviz:cs-c6n-a0-1c2wfr-mul:-:*:*:*:*:*:*:* | not specified by NVD | Running on | EZVIZ |
- cpe:2.3:o:ezviz:cs-c6n-b0-1g2wf_firmware:*:*:*:*:*:*:*:* Versions up to 5.3.0 Vulnerable ·EZVIZ
- cpe:2.3:h:ezviz:cs-c6n-b0-1g2wf:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·EZVIZ
- cpe:2.3:o:ezviz:cs-c6n-r101-1g2wf_firmware:*:*:*:*:*:*:*:* Versions up to 5.3.0 Vulnerable ·EZVIZ
- cpe:2.3:h:ezviz:cs-c6n-r101-1g2wf:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·EZVIZ
- cpe:2.3:o:ezviz:cs-cv310-a0-1b2wfr_firmware:*:*:*:*:*:*:*:* Versions up to 5.3.0 Vulnerable ·EZVIZ
- cpe:2.3:h:ezviz:cs-cv310-a0-1b2wfr:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·EZVIZ
- cpe:2.3:o:ezviz:cs-cv310-a0-1c2wfr-c_firmware:*:*:*:*:*:*:*:* Versions up to 5.3.2 Vulnerable ·EZVIZ
- cpe:2.3:h:ezviz:cs-cv310-a0-1c2wfr-c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·EZVIZ
- cpe:2.3:o:ezviz:cs-c6n-a0-1c2wfr-mul_firmware:*:*:*:*:*:*:*:* Versions up to 5.3.2 Vulnerable ·EZVIZ
- cpe:2.3:h:ezviz:cs-c6n-a0-1c2wfr-mul:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·EZVIZ
Show 8 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:ezviz:cs-cv310-a0-3c2wfrl-1080p_firmware:*:*:*:*:*:*:*:* | up to 5.2.7 | Vulnerable | EZVIZ |
| cpe:2.3:h:ezviz:cs-cv310-a0-3c2wfrl-1080p:-:*:*:*:*:*:*:* | not specified by NVD | Running on | EZVIZ |
| cpe:2.3:o:ezviz:cs-cv310-a0-1c2wfr_firmware:*:*:*:*:*:*:*:* | up to 5.3.2 | Vulnerable | EZVIZ |
| cpe:2.3:h:ezviz:cs-cv310-a0-1c2wfr:-:*:*:*:*:*:*:* | not specified by NVD | Running on | EZVIZ |
| cpe:2.3:o:ezviz:cs-cv248-a0-32wmfr_firmware:*:*:*:*:*:*:*:* | up to 5.2.3 | Vulnerable | EZVIZ |
| cpe:2.3:h:ezviz:cs-cv248-a0-32wmfr:-:*:*:*:*:*:*:* | not specified by NVD | Running on | EZVIZ |
| cpe:2.3:o:ezviz:lc1c_firmware:*:*:*:*:*:*:*:* | up to 5.3.4 | Vulnerable | EZVIZ |
| cpe:2.3:h:ezviz:lc1c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | EZVIZ |
- cpe:2.3:o:ezviz:cs-cv310-a0-3c2wfrl-1080p_firmware:*:*:*:*:*:*:*:* Versions up to 5.2.7 Vulnerable ·EZVIZ
- cpe:2.3:h:ezviz:cs-cv310-a0-3c2wfrl-1080p:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·EZVIZ
- cpe:2.3:o:ezviz:cs-cv310-a0-1c2wfr_firmware:*:*:*:*:*:*:*:* Versions up to 5.3.2 Vulnerable ·EZVIZ
- cpe:2.3:h:ezviz:cs-cv310-a0-1c2wfr:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·EZVIZ
- cpe:2.3:o:ezviz:cs-cv248-a0-32wmfr_firmware:*:*:*:*:*:*:*:* Versions up to 5.2.3 Vulnerable ·EZVIZ
- cpe:2.3:h:ezviz:cs-cv248-a0-32wmfr:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·EZVIZ
- cpe:2.3:o:ezviz:lc1c_firmware:*:*:*:*:*:*:*:* Versions up to 5.3.4 Vulnerable ·EZVIZ
- cpe:2.3:h:ezviz:lc1c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·EZVIZ
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-34551
- 2026-10-03 Alias added: GHSA-xg9r-w6fx-9996
References
More EZVIZ Cs-c6n-a0-1c2wfr-mul Firmware vulnerabilities
- TI-2023-17314 In certain EZVIZ products, two stack based buffer overflows in mulicast_parse_sadp_packet… CVSS 3.1HIGH 8.8
Sources
- CVE-2023-34551 · CVE Program
- CVE-2023-34551 · NVD
- FIRST EPSS
- GHSA-xg9r-w6fx-9996 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences