# Incorrect authorization in Yealink T3XW Series Phones and others

CVE record · `CVE-2026-122116`

- **Identifiers:** `CVE-2026-122116`
- **State:** Confirmed
- **Severity:** CVSS 4.3 Medium
- **Critical:** No
- **CNA:** mitre
- **Weakness (CWE):** [CWE-863](https://cwe.mitre.org/data/definitions/863.html)
- **Tags:** [Broken access control](https://agentprime.io/advisories/tag/access-control.md)
- **Technologies:** [Yealink T3XW Series Phones](https://agentprime.io/advisories/technology/yealink-t3xw-series-phones.md) · [Yealink T4X Series Phones](https://agentprime.io/advisories/technology/yealink-t4x-series-phones.md) · [Yealink T5X Series Phones](https://agentprime.io/advisories/technology/yealink-t5x-series-phones.md) · [Yealink T7X Series Phones](https://agentprime.io/advisories/technology/yealink-t7x-series-phones.md) · [Yealink SIP-T85W、SIP-T87W](https://agentprime.io/advisories/technology/yealink-sip-t85w-sip-t87w.md) · [Yealink AX83H、AX86R](https://agentprime.io/advisories/technology/yealink-ax83h-ax86r.md) · [Yealink CP925](https://agentprime.io/advisories/technology/yealink-cp925.md) · [Yealink CP935W](https://agentprime.io/advisories/technology/yealink-cp935w.md) · [Yealink MP E2 Teams Series](https://agentprime.io/advisories/technology/yealink-mp-e2-teams-series.md) · [Yealink VP59 Teams](https://agentprime.io/advisories/technology/yealink-vp59-teams.md) · [Yealink SIP-T58W](https://agentprime.io/advisories/technology/yealink-sip-t58w.md) · [Yealink VP59](https://agentprime.io/advisories/technology/yealink-vp59.md) · [Yealink CP965](https://agentprime.io/advisories/technology/yealink-cp965.md)
- **Published:** 4 Nov 2026
- **Updated:** 4 Nov 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: mitre) at 4 Nov 2026, 17:47 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Yealink. Product: T3XW Series Phones.
  - affected: `124.85.0.1 to before 124.87.0.22` (custom)
  - Other versions: unaffected
- Vendor: Yealink. Product: T4X Series Phones.
  - affected: `108.85.0.1 to before 108.87.0.23` (custom)
  - Other versions: unaffected
- Vendor: Yealink. Product: T5X Series Phones.
  - affected: `96.85.0.1 to before 96.87.0.24` (custom)
  - Other versions: unaffected
- Vendor: Yealink. Product: T7X Series Phones.
  - affected: `185.87.0.5 to before 185.87.0.39` (custom)
  - Other versions: unaffected
- Vendor: Yealink. Product: SIP-T85W、SIP-T87W.
  - affected: `185.87.0.5 to before 185.87.0.39` (custom)
  - Other versions: unaffected
- Vendor: Yealink. Product: AX83H、AX86R.
  - affected: `180.86.0.1 to before 180.87.0.15` (custom)
  - Other versions: unaffected
- Vendor: Yealink. Product: CP925.
  - affected: `148.85.0.1 to before 148.87.0.41` (custom)
  - Other versions: unaffected
- Vendor: Yealink. Product: CP935W.
  - affected: `149.85.0.1 to before 149.87.0.41` (custom)
  - Other versions: unaffected
- Vendor: Yealink. Product: MP E2 Teams Series.
  - affected: `176.15.0.1 to before 176.15.0.191` (custom)
  - Other versions: unaffected
- Vendor: Yealink. Product: VP59 Teams.
  - affected: `91.15.0.1 to before 91.15.1.37` (custom)
  - Other versions: unaffected
- Vendor: Yealink. Product: SIP-T58W.
  - affected: `150.86.0.5 to before 150.87.0.22` (custom)
  - Other versions: unaffected
- Vendor: Yealink. Product: VP59.
  - affected: `91.86.0.5 to before 91.87.0.27` (custom)
  - Other versions: unaffected
- Vendor: Yealink. Product: CP965.
  - affected: `143.86.0.5 to before 143.87.0.27` (custom)
  - Other versions: unaffected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 4.3 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L`, from CNA (mitre)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0031, the 24th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 4 Nov 2026, 17:47 UTC: [Confirmed by the CVE List](https://www.cve.org/CVERecord?id=CVE-2026-122116)
- 4 Nov 2026, 17:57 UTC: First seen by agentprime
- 4 Nov 2026, 18:17 UTC: [Confirmed by NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-122116)

## Sources

- [CVE List: CVE-2026-122116](https://www.cve.org/CVERecord?id=CVE-2026-122116)
- [NVD: CVE-2026-122116](https://nvd.nist.gov/vuln/detail/CVE-2026-122116)

### References from the CNA

- <https://www.yealink.com/en/trust-center/security-bulletins/wifi-8021x-peap-authentication-credential-leakage-vulnerability>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-122116>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-122116/>. Everything for agents: <https://agentprime.io/llms.txt>.
