A vulnerability was reported in Lenovo Smart Camera X3, X5, and C2E that could allow code execution if a specific file exists on the attache
A vulnerability was reported in Lenovo Smart Camera X3, X5, and C2E that could allow code execution if a specific file exists on the attached SD card. This vulnerability is the same as CNVD-2021-45262.
- Published
- Aug 17, 2021
- Updated
- Jun 17, 2026
- EPSS
- 0.3% · 21th percentile
- CWE
- CWE-94
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Report tools
Action score
27
Monitor
Low priority for now.
- CVSS
- 27 / 40 · 6.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
CNA vs NVD score
- NVD
- 6.8
- CNA · lenovo
- 6.6
- 0.2 point gap
CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
| Vendor | Product | CPE |
|---|---|---|
| lenovo | smart camera c2e firmware | cpe:2.3:o:lenovo:smart_camera_c2e_firmware |
| lenovo | smart camera c2e | cpe:2.3:h:lenovo:smart_camera_c2e |
| lenovo | smart camera x3 firmware | cpe:2.3:o:lenovo:smart_camera_x3_firmware |
| lenovo | smart camera x3 | cpe:2.3:h:lenovo:smart_camera_x3 |
| lenovo | smart camera x5 firmware | cpe:2.3:o:lenovo:smart_camera_x5_firmware |
| lenovo | smart camera x5 | cpe:2.3:h:lenovo:smart_camera_x5 |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- lenovo smart camera c2e firmwarebefore 01.03.29.16
- lenovo smart camera x3 firmwarebefore 01.03.29.16
- lenovo smart camera x5 firmwarebefore 01.03.29.16
Versions reported by the vendor
Affected version ranges reported by the assigning authority (lenovo). Independent of NVD's CPE analysis and usually ahead of it.
Lenovo Smart Camera X3, X5, and C2E firmware
- unspecified and later · before 01.03.29.16affected
Same product
lenovo: all recordsOther highest-scoring records for the same primary product.
- CVE-2021-3616A vulnerability was reported in Lenovo Smart Camera X3, X5, and C2E that could allow an unauthorized user to view device information, alter 39Monitor
- CVE-2021-3617A vulnerability was reported in Lenovo Smart Camera X3, X5, and C2E that could allow command injection by setting a specially crafted networ28Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
- Charles Jiang and Xingcan ChenLenovo Global Security Lab for reporting these issues.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-21-0656 · Aug 18, 2021(Lenovo Ürünleri Zafiyeti)
Technical details
Attack conditions
- Physical access to the device is required.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Physical
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-94 · Improper Control of Generation of Code ('Code Injection')CVSS vector
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.