CVE-2025-55634Public exploitNetwork attack vector

Unauthenticated service interruption via unrestricted RTMP pushes

Published Aug 22, 2025 · Updated Aug 22, 2025

Incorrect access control in Reolink Smart 2K+ Doorbell firmware 3.0.0.4662_2503122283 allows remote attackers to interrupt service. The RTMP publishing path accepts numerous simultaneous unauthenticated ffmpeg stream pushes without enforcing access control or limiting resource consumption. Sustaining many concurrent pushes exhausts device resources; public evidence does not distinguish whether the resulting interruption is a hang, crash, or reboot.

CVSS severity7.5
High
EPSS probability0.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Incorrect access control in Reolink Smart 2K+ Doorbell firmware 3.0.0.4662_2503122283 allows remote attackers to interrupt service. The RTMP publishing path accepts numerous simultaneous unauthenticated ffmpeg stream pushes without enforcing access control or limiting resource consumption. Sustaining many concurrent pushes exhausts device resources; public evidence does not distinguish whether the resulting interruption is a hang, crash, or reboot.

The record

CVE
CVE-2025-55634
Published
Aug 22, 2025
Updated
Aug 22, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-400, T1499.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Aug 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.002Service Exhaustion Flood

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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