Is CVE-2021-3616 in the CISA KEV catalog?

No. CVE-2021-3616 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3616?

CVE-2021-3616 has a CVSS v3 base score of 9.4 (CRITICAL).

What is the EPSS score for CVE-2021-3616?

CVE-2021-3616 has an EPSS score of 0.92% (56th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3616?

Upgrade smart camera c2e firmware to 01.03.29.16 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2021-3616

CRITICAL

9.4

CVSS v3

NVD

Description

A vulnerability was reported in Lenovo Smart Camera X3, X5, and C2E that could allow an unauthorized user to view device information, alter firmware content and device configuration. This vulnerability is the same as CNVD-2020-68651.

CWE-285

How to fix

Remediation Available

smart camera c2e firmwareNVD

Affected:< 01.03.29.16Fixed in:01.03.29.16CVE-2021-3616derived from NVD

smart camera x3 firmwareNVD

Affected:< 01.03.29.16Fixed in:01.03.29.16CVE-2021-3616derived from NVD

smart camera x5 firmwareNVD

Affected:< 01.03.29.16Fixed in:01.03.29.16CVE-2021-3616derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Exploit Intelligence

0.92%probability of exploitation in 30 days

56thpercentile

Moderate risk: more likely to be exploited than 56% of all known CVEs.

References

Vendor Advisory1

iknow.lenovo.com.cn

Other references1

cnvd.org.cn

Related Vulnerabilities

Other CWE-285 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2021-28799	Critical	10.0	78%	KEV + Ransom	Fix
CVE-2023-32707	High	8.8	74%	-	Fix
CVE-2023-48241	High	7.5	73%	-	Fix
CVE-2023-22480	High	7.3	67%	-	Fix
CVE-2022-3229	Critical	9.8	66%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.