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Sat, 27 Jun 2026 06:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A vulnerability was found in Yealink SIP-T46U 108.86.0.118. This impacts the function sprintf of the file /api/upgrade/upgrade of the component Firmware Chunk Upload Handler. Performing a manipulation of the argument uid/start_offset results in stack-based buffer overflow. The attack needs to be approached within the local network. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way. | A vulnerability was found in Yealink SIP-T46U 108.86.0.118. This impacts the function sprintf of the file /api/upgrade/upgrade of the component Firmware Chunk Upload Handler. Performing a manipulation of the argument uid/start_offset results in stack-based buffer overflow. The attack needs to be approached within the local network. The exploit has been made public and could be used. The vendor was contacted early about this disclosure and is working on a patch to fix it. |
| Metrics |
cvssV2_0
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cvssV2_0
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Mon, 15 Jun 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Mon, 15 Jun 2026 06:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A vulnerability was found in Yealink SIP-T46U 108.86.0.118. This impacts the function sprintf of the file /api/upgrade/upgrade of the component Firmware Chunk Upload Handler. Performing a manipulation of the argument uid/start_offset results in stack-based buffer overflow. The attack needs to be approached within the local network. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way. | |
| Title | Yealink SIP-T46U Firmware Chunk Upload upgrade sprintf stack-based overflow | |
| First Time appeared |
Yealink
Yealink sip-t46u |
|
| Weaknesses | CWE-119 CWE-121 |
|
| CPEs | cpe:2.3:a:yealink:sip-t46u:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Yealink
Yealink sip-t46u |
|
| References |
| |
| Metrics |
cvssV2_0
|
Status: PUBLISHED
Assigner: VulDB
Published:
Updated: 2026-06-27T05:45:23.320Z
Reserved: 2026-06-14T13:54:18.805Z
Link: CVE-2026-12221
Updated: 2026-06-15T12:50:41.697Z
Status : Deferred
Published: 2026-06-15T06:16:24.263
Modified: 2026-06-15T20:42:32.707
Link: CVE-2026-12221
No data.
OpenCVE Enrichment
Updated: 2026-06-27T08:30:07Z