{"id":86871,"date":"2026-04-05T01:13:39","date_gmt":"2026-04-05T01:13:39","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-55631-resource-exhaustion-vulnerability-in-reolink-smart-2k-plug-in-wi-fi-video-doorbell","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-55631-resource-exhaustion-vulnerability-in-reolink-smart-2k-plug-in-wi-fi-video-doorbell\/","title":{"rendered":"CVE-2025-55631: Resource Exhaustion Vulnerability in Reolink Smart 2K+ Plug-in Wi-Fi Video Doorbell<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The CVE-2025-55631 is a significant cybersecurity vulnerability discovered in the Reolink Smart 2K+ Plug-in Wi-Fi Video Doorbell with Chime, firmware v3.0.0.4662_2503122283. This flaw could potentially lead to a Denial of Service (DoS) attack via resource exhaustion, impacting homeowners, businesses, and other users of the device. Considering the widespread use of this product, addressing this vulnerability is of utmost importance to prevent system compromise or data leakage.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-55631
\nSeverity: High (7.5 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Reolink Smart 2K+ Plug-in Wi-Fi Video Doorbell with Chime | Firmware v3.0.0.4662_2503122283<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability arises from how the Reolink Smart 2K+ Plug-in Wi-Fi Video Doorbell manages user sessions. Instead of managing sessions on an account-by-account basis, the system manages them system-wide. An attacker could exploit this flaw by initiating multiple user sessions, leading to resource exhaustion and causing a Denial of Service (DoS).<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Below is a conceptual example of how the vulnerability might be exploited. In this case, the attacker initiates multiple user sessions to exhaust system resources:<\/p>\n

POST \/initiate_session HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"username\": \"attacker_1\", \"password\": \"password\" }\nPOST \/initiate_session HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"username\": \"attacker_2\", \"password\": \"password\" }\n...\n...\n...\nPOST \/initiate_session HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"username\": \"attacker_n\", \"password\": \"password\" }<\/code><\/pre>\n
This repeated process could exhaust the system resources eventually leading to a denial of service. Users are advised to apply the vendor patch or use WAF\/IDS as temporary mitigation.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The CVE-2025-55631 is a significant cybersecurity vulnerability discovered in the Reolink Smart 2K+ Plug-in Wi-Fi Video Doorbell with Chime, firmware v3.0.0.4662_2503122283. This flaw could potentially lead to a Denial of Service (DoS) attack via resource exhaustion, impacting homeowners, businesses, and other users of the device. Considering the widespread use of this product, addressing this […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86871","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t