Vulnerability

CVE-2021-40407

High· 7.2KEVCVSS7.2EPSS25%

.rules3/5

Reolink RLC-410W IP Camera OS Command Injection Vulnerability

Reolink RLC-410W IP cameras contain an authenticated OS command injection vulnerability in the device network settings functionality.

Threat signal

89/100

Severe

Severity

high

CVSS

7.2

EPSS

25%

Active

KEV

CISA KEV — actively exploited

521d overdue

AffectedReolink — RLC-410W IP Camera

Added to KEV

2024-12-18

Federal patch due (BOD 22-01)

2025-01-08

Required action (CISA verbatim)

The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization if a current mitigation is unavailable.

Vendor advisory + references

CISA description: “Reolink RLC-410W IP cameras contain an authenticated OS command injection vulnerability in the device network settings functionality.”

CVSS

v3.1Open in FIRST calculator →

7.2/ 10HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack VectorNetworkExploitable remotely over the internet — no local access needed.
Attack ComplexityLowNo special conditions — exploit works reliably.
Privileges RequiredHighAdmin / root privileges required.
User InteractionNoneFully automated — no victim action needed.
ScopeUnchangedImpact contained to the vulnerable component.
Confidentiality ImpactHighTotal disclosure of sensitive data.
Integrity ImpactHighTotal compromise of integrity — full data modification possible.
Availability ImpactHighTotal loss of availability — full DoS possible.

EPSS

Exploit prediction · 30-day horizonFIRST.org →

25.3%

probability of exploitation in next 30 days

p96

higher than 96% of all CVEs

3-day trend↑ 0pp

Above the FIRST 'patch on a priority schedule' threshold.

Vendor VEX

No VEX statements published for CVE-2021-40407. Vendors publish VEX (Vulnerability Exploitability eXchange) to assert per-product whether a CVE is actually exploitable in their distribution.

SSVCAct

Active exploitation with total impact on essential/support systems

exploitation: active
automatable: no
impact: total
mission: support

Lifecycle

2024-12-18Added to CISA KEVransomware: Unknown
2024-12-18Published
2025-01-08Federal patch due (BOD 22-01)
2026-06-12Last modified1 source

No source-event history recorded yet. New revisions will appear here as ingestors re-fetch this CVE.