CVE-2026-12223Disclosure

LOWCVSS 2.0 · LOW

Exploit discussion active in current signal (1 latest mentions)

Immediate actions

Prioritize remediation for affected systems immediately
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft
Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

A vulnerability was identified in Yealink SIP-T46U 108.86.0.118. Affected by this vulnerability is the function mod_webd.TFTPUploadIperf of the file /api/inner/tftpuploadiperf of the component Web FastCGI Service. The manipulation of the argument ip/port leads to command injection. The attack needs to be initiated within the local network. The exploit is publicly available and might be used. Upgrading to version 108.87.0.23 addresses this issue. Upgrading the affected component is recommended. The vendor explains: "It has been fixed (...) for our technical support branch. However, please note that this specific support branch firmware is not publicly released yet."

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3.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-74CWE-77

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Threat summary

Public PoC and exploit tooling are both present
4 mentions across 2 observed days
Momentum state: stable

What's happening

Exploit tool or code specified in 1 signal
PoC mentioned or linked in 1 signal
Technical details provided in 3 signals
Disclosure: 3 classified signals
Peaked 1d ago at 3 mentions (2026-06-15); latest day: 1
4 total mentions across 2 days

Deep dive

Activity timeline4 mentions / 2d

Signal classification2 categories

Disclosure

375.0%

Exploit

125.0%

Referenced assets4 URLs

By indicator

Classification over time

Date	Total	Labels

2026-06-15	3	Disclosure3
2026-07-23	1	Exploit1

Full discourse4 posts

CVE@CVEnew136d
Disclosure
CVE-2026-12223 A vulnerability was identified in Yealink SIP-T46U 108.86.0.118. Affected by this vulnerability is the function mod_webd.TFTPUploadIperf of the file /api/inner/tftpup… https://www.cve.org/CVERecord?id=CVE-2026-12223
Post summary
The post announces CVE‑2026‑12223, a vulnerability in Yealink SIP‑T46U affecting a specific TFTP upload function.
00020317
58.0K followersView on X
MalwareObserver@MalwareObserver98d
Exploit
🐛 VULNERABILITIES CVE Notify: 🚨 [CVE-2026-12223](http://cdn2.v50to.cc/T46U/T46U_mod_webd_TFTPUploadIperf_system_exec.zip) A vulne... http://cdn2.v50to.cc/T46U/T46U_mod_webd_TFTPUploadIperf_system_exec.zip #ZeroDay #PatchManagement #Vulnerability
Post summary
The post shares a link to a ZIP file that likely contains a functional exploit for CVE-2026-12223, with no evidence of patching or active exploitation reports.
0000034
13 followersView on X
Infoflowcloud@infoflowcloud136d
Disclosure
🚨*CVE* CVE-2026-12223 A vulnerability was identified in Yealink SIP-T46U 108.86.0.118. Affected by this vulnerability is the function mod_webd.TFTPUploadIperf of the file /api/inner/tftpup… https://www.cve.org/CVERecord?id=CVE-2026-12223 ----- Traducción: CVE-2026-12223 Se … http://infoflow.cloud`
Post summary
A new vulnerability (CVE-2026-12223) affecting Yealink SIP-T46U devices has been announced, detailing the impacted function and file path.
0000020
79 followersView on X
Vulmon Vulnerability Feed@VulmonFeeds136d
Disclosure
CVE-2026-12223 Command Injection in Yealink SIP-T46U 108.86.0.118 Web FastCGI Service https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-12223
Post summary
This entry announces a command injection vulnerability in the Yealink SIP‑T46U Web FastCGI Service (CVE‑2026‑12223).
0000037
4.0K followersView on X

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