{"schema_version":1,"title":"Yealink vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 10 vulnerabilities in Yealink: 0 in the last 7 days and 1 in the last 90 days, 1 of them critical and 1 exploited in the wild. The most recent, CVE-2026-7208, was published on 14 September 2026. 1 technology has a page of its own.","url":"https://junglewise.ai/threats/vendors/yealink","json_url":"https://junglewise.ai/threats/vendors/yealink.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/vendors/yealink","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"vendor","counts":{"high":5,"all_time":10,"critical":1,"exploited":1,"last_7_days":0,"last_30_days":1,"last_90_days":1,"last_365_days":9},"latest":[{"cve":"CVE-2026-7208","cvss":5.3,"epss":0.0035,"slug":"cve-2026-7208-yealink-sip-t33g-race-condition-in-diagnostic-file-deletion","title":"Yealink SIP-T33G race condition in diagnostic file deletion","severity":"medium","exploited":false,"published_at":"2026-09-14T14:17:12.12+00:00","url":"https://junglewise.ai/threats/cve-2026-7208-yealink-sip-t33g-race-condition-in-diagnostic-file-deletion"},{"cve":"CVE-2026-12223","cvss":5.5,"slug":"cve-2026-12223-yealink-sip-t46u-command-injection-in-web-fastcgi-service","title":"Yealink SIP-T46U command injection in Web FastCGI Service","severity":"medium","exploited":false,"published_at":"2026-06-15T06:16:24.567+00:00","url":"https://junglewise.ai/threats/cve-2026-12223-yealink-sip-t46u-command-injection-in-web-fastcgi-service"},{"cve":"CVE-2026-12222","cvss":8,"slug":"cve-2026-12222-yealink-sip-t46u-stack-buffer-overflow-in-web-fastcgi-service","title":"Yealink SIP-T46U stack buffer overflow in Web FastCGI Service","severity":"high","exploited":false,"published_at":"2026-06-15T06:16:24.413+00:00","url":"https://junglewise.ai/threats/cve-2026-12222-yealink-sip-t46u-stack-buffer-overflow-in-web-fastcgi-service"},{"cve":"CVE-2026-12221","cvss":8,"slug":"cve-2026-12221-yealink-sip-t46u-stack-based-buffer-overflow-in-firmware-chunk","title":"Yealink SIP-T46U stack-based buffer overflow in Firmware Chunk Upload Handler","severity":"high","exploited":false,"published_at":"2026-06-15T06:16:24.263+00:00","url":"https://junglewise.ai/threats/cve-2026-12221-yealink-sip-t46u-stack-based-buffer-overflow-in-firmware-chunk"},{"cve":"CVE-2026-12220","cvss":8,"slug":"cve-2026-12220-yealink-sip-t46u-stack-overflow-in-firmware-chunk-upload-handler","title":"Yealink SIP-T46U stack overflow in Firmware Chunk Upload handler","severity":"high","exploited":false,"published_at":"2026-06-15T06:16:24.113+00:00","url":"https://junglewise.ai/threats/cve-2026-12220-yealink-sip-t46u-stack-overflow-in-firmware-chunk-upload-handler"},{"cve":"CVE-2026-12219","cvss":6.3,"slug":"cve-2026-12219-yealink-sip-t46u-command-injection-in-web-fastcgi-service","title":"Yealink SIP-T46U command injection in Web FastCGI Service","severity":"medium","exploited":false,"published_at":"2026-06-15T06:16:23.953+00:00","url":"https://junglewise.ai/threats/cve-2026-12219-yealink-sip-t46u-command-injection-in-web-fastcgi-service"},{"cve":"CVE-2026-12218","cvss":8,"slug":"cve-2026-12218-yealink-sip-t46u-stack-based-buffer-overflow-in-web-fastcgi","title":"Yealink SIP-T46U stack-based buffer overflow in Web FastCGI Service","severity":"high","exploited":false,"published_at":"2026-06-15T06:16:22.673+00:00","url":"https://junglewise.ai/threats/cve-2026-12218-yealink-sip-t46u-stack-based-buffer-overflow-in-web-fastcgi"},{"cve":"CVE-2025-66737","cvss":4.3,"epss":0.0062,"slug":"cve-2025-66737-yealink-t21p-e2-directory-traversal-in-diagnostic-component","title":"Yealink T21P_E2 directory traversal in diagnostic component","severity":"medium","exploited":false,"published_at":"2025-12-26T17:15:44.09+00:00","url":"https://junglewise.ai/threats/cve-2025-66737-yealink-t21p-e2-directory-traversal-in-diagnostic-component"},{"cve":"CVE-2025-66738","cvss":8.8,"epss":0.006,"slug":"cve-2025-66738-yealink-t21p-e2-command-injection-in-diagnostic-ping-function","title":"Yealink T21P_E2 command injection in diagnostic ping function","severity":"high","exploited":false,"published_at":"2025-12-26T16:15:44.26+00:00","url":"https://junglewise.ai/threats/cve-2025-66738-yealink-t21p-e2-command-injection-in-diagnostic-ping-function"},{"cve":"CVE-2021-27561","cvss":9.8,"slug":"cve-2021-27561-yealink-device-management-server-side-request-forgery-ssrf","title":"Yealink Device Management Server-Side Request Forgery (SSRF) Vulnerability","severity":"critical","exploited":true,"published_at":"2021-11-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2021-27561-yealink-device-management-server-side-request-forgery-ssrf"}],"vendor":{"hub":true,"name":"Yealink","slug":"yealink","homepage":"https://www.yealink.com/","description":"Yealink is a global provider of unified communication and collaboration solutions, specializing in video conferencing, voice communications, and collaboration tools.","url":"https://junglewise.ai/threats/vendors/yealink"},"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":1},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"most_severe":[{"cve":"CVE-2021-27561","cvss":9.8,"slug":"cve-2021-27561-yealink-device-management-server-side-request-forgery-ssrf","title":"Yealink Device Management Server-Side Request Forgery (SSRF) Vulnerability","severity":"critical","exploited":true,"published_at":"2021-11-03T00:00:00+00:00","url":"https://junglewise.ai/threats/cve-2021-27561-yealink-device-management-server-side-request-forgery-ssrf"},{"cve":"CVE-2025-66738","cvss":8.8,"epss":0.006,"slug":"cve-2025-66738-yealink-t21p-e2-command-injection-in-diagnostic-ping-function","title":"Yealink T21P_E2 command injection in diagnostic ping function","severity":"high","exploited":false,"published_at":"2025-12-26T16:15:44.26+00:00","url":"https://junglewise.ai/threats/cve-2025-66738-yealink-t21p-e2-command-injection-in-diagnostic-ping-function"},{"cve":"CVE-2026-12222","cvss":8,"slug":"cve-2026-12222-yealink-sip-t46u-stack-buffer-overflow-in-web-fastcgi-service","title":"Yealink SIP-T46U stack buffer overflow in Web FastCGI Service","severity":"high","exploited":false,"published_at":"2026-06-15T06:16:24.413+00:00","url":"https://junglewise.ai/threats/cve-2026-12222-yealink-sip-t46u-stack-buffer-overflow-in-web-fastcgi-service"},{"cve":"CVE-2026-12221","cvss":8,"slug":"cve-2026-12221-yealink-sip-t46u-stack-based-buffer-overflow-in-firmware-chunk","title":"Yealink SIP-T46U stack-based buffer overflow in Firmware Chunk Upload Handler","severity":"high","exploited":false,"published_at":"2026-06-15T06:16:24.263+00:00","url":"https://junglewise.ai/threats/cve-2026-12221-yealink-sip-t46u-stack-based-buffer-overflow-in-firmware-chunk"},{"cve":"CVE-2026-12220","cvss":8,"slug":"cve-2026-12220-yealink-sip-t46u-stack-overflow-in-firmware-chunk-upload-handler","title":"Yealink SIP-T46U stack overflow in Firmware Chunk Upload handler","severity":"high","exploited":false,"published_at":"2026-06-15T06:16:24.113+00:00","url":"https://junglewise.ai/threats/cve-2026-12220-yealink-sip-t46u-stack-overflow-in-firmware-chunk-upload-handler"},{"cve":"CVE-2026-12218","cvss":8,"slug":"cve-2026-12218-yealink-sip-t46u-stack-based-buffer-overflow-in-web-fastcgi","title":"Yealink SIP-T46U stack-based buffer overflow in Web FastCGI Service","severity":"high","exploited":false,"published_at":"2026-06-15T06:16:22.673+00:00","url":"https://junglewise.ai/threats/cve-2026-12218-yealink-sip-t46u-stack-based-buffer-overflow-in-web-fastcgi"},{"cve":"CVE-2026-12219","cvss":6.3,"slug":"cve-2026-12219-yealink-sip-t46u-command-injection-in-web-fastcgi-service","title":"Yealink SIP-T46U command injection in Web FastCGI Service","severity":"medium","exploited":false,"published_at":"2026-06-15T06:16:23.953+00:00","url":"https://junglewise.ai/threats/cve-2026-12219-yealink-sip-t46u-command-injection-in-web-fastcgi-service"},{"cve":"CVE-2026-12223","cvss":5.5,"slug":"cve-2026-12223-yealink-sip-t46u-command-injection-in-web-fastcgi-service","title":"Yealink SIP-T46U command injection in Web FastCGI Service","severity":"medium","exploited":false,"published_at":"2026-06-15T06:16:24.567+00:00","url":"https://junglewise.ai/threats/cve-2026-12223-yealink-sip-t46u-command-injection-in-web-fastcgi-service"},{"cve":"CVE-2026-7208","cvss":5.3,"epss":0.0035,"slug":"cve-2026-7208-yealink-sip-t33g-race-condition-in-diagnostic-file-deletion","title":"Yealink SIP-T33G race condition in diagnostic file deletion","severity":"medium","exploited":false,"published_at":"2026-09-14T14:17:12.12+00:00","url":"https://junglewise.ai/threats/cve-2026-7208-yealink-sip-t33g-race-condition-in-diagnostic-file-deletion"},{"cve":"CVE-2025-66737","cvss":4.3,"epss":0.0062,"slug":"cve-2025-66737-yealink-t21p-e2-directory-traversal-in-diagnostic-component","title":"Yealink T21P_E2 directory traversal in diagnostic component","severity":"medium","exploited":false,"published_at":"2025-12-26T17:15:44.09+00:00","url":"https://junglewise.ai/threats/cve-2025-66737-yealink-t21p-e2-directory-traversal-in-diagnostic-component"}],"generated_at":"2026-09-26T09:11:00.170868+00:00","technologies":[{"name":"Yealink SIP-T46U","slug":"sip-t46u","vulnerabilities":6,"url":"https://junglewise.ai/threats/technologies/sip-t46u"}]}