Technology · Yealink
Yealink SIP-T46U vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 6 vulnerabilities in Yealink SIP-T46U: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-12223, was published on 15 June 2026.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
About Yealink SIP-T46U
Firmware for the Yealink SIP-T46U IP phone, providing the operating environment and communication protocols for the hardware.
Latest Yealink SIP-T46U vulnerabilities
- CVE-2026-12223: Yealink SIP-T46U command injection in Web FastCGI ServicemediumCVSS 5.5
- CVE-2026-12222: Yealink SIP-T46U stack buffer overflow in Web FastCGI ServicehighCVSS 8
- CVE-2026-12221: Yealink SIP-T46U stack-based buffer overflow in Firmware Chunk Upload HandlerhighCVSS 8
- CVE-2026-12220: Yealink SIP-T46U stack overflow in Firmware Chunk Upload handlerhighCVSS 8
- CVE-2026-12219: Yealink SIP-T46U command injection in Web FastCGI ServicemediumCVSS 6.3
- CVE-2026-12218: Yealink SIP-T46U stack-based buffer overflow in Web FastCGI ServicehighCVSS 8
Most severe Yealink SIP-T46U vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-12222: Yealink SIP-T46U stack buffer overflow in Web FastCGI ServicehighCVSS 8
- CVE-2026-12221: Yealink SIP-T46U stack-based buffer overflow in Firmware Chunk Upload HandlerhighCVSS 8
- CVE-2026-12220: Yealink SIP-T46U stack overflow in Firmware Chunk Upload handlerhighCVSS 8
- CVE-2026-12218: Yealink SIP-T46U stack-based buffer overflow in Web FastCGI ServicehighCVSS 8
- CVE-2026-12219: Yealink SIP-T46U command injection in Web FastCGI ServicemediumCVSS 6.3
- CVE-2026-12223: Yealink SIP-T46U command injection in Web FastCGI ServicemediumCVSS 5.5
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/sip-t46u.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Yealink SIP-T46U vulnerabilities", https://junglewise.ai/threats/technologies/sip-t46u, 26 September 2026.