Project Subscriptions
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Zbtlink
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Cpe2801 Firmware
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We1026-5g-wd Firmware
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We1326 Firmware
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We2007 Firmware
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We2008-dsim Firmware
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We2416 Firmware
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We3326 Firmware
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We5927 Firmware
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We5931 Firmware
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We5931ac Firmware
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We826-t3-dsim Firmware
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Wg108 Firmware
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Wg1602 Firmware
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Wg1608-dsim Firmware
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Wg209 Firmware
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Wg2105 Firmware
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Wg259 Firmware
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Z8102ax Firmware
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No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Wed, 05 Aug 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 05 Aug 2026 11:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Zbtlink router firmware ships an embedded remote-control implant, ENDLESSDOORS, present in every published build across the product line. It is the open-source ycsunjane/rctl tool built in as an OpenWrt package (librctl.so), started at boot and run as root under the process name kworker to blend in with the kernel's [kworker/*] threads. It opens no listening port; it phones home over cleartext TCP to a hardcoded command-and-control server (command channel 7000, interactive-shell callback 7001) with no authentication and no transport encryption, re-attempting contact roughly every 35 seconds. Its command handler passes any received string to popen() as uid=0, and a reserved rctlbash command returns an interactive root shell. Because the channel is unauthenticated and cleartext, control is not limited to whoever planted it: any party that answers at the C2 address, occupies the network path (DNS or route hijack), or acquires the hardcoded fallback domain obtains unauthenticated remote code execution as root. | |
| Title | ENDLESSDOORS: Zbtlink Router rctl/kworker Phone-Home Root Implant | |
| First Time appeared |
Zbtlink
Zbtlink cpe2801 Firmware Zbtlink we1026-5g-wd Firmware Zbtlink we1326 Firmware Zbtlink we2007 Firmware Zbtlink we2008-dsim Firmware Zbtlink we2416 Firmware Zbtlink we3326 Firmware Zbtlink we5927 Firmware Zbtlink we5931 Firmware Zbtlink we5931ac Firmware Zbtlink we826-t3-dsim Firmware Zbtlink wg108 Firmware Zbtlink wg1602 Firmware Zbtlink wg1608-dsim Firmware Zbtlink wg209 Firmware Zbtlink wg2105 Firmware Zbtlink wg2107 Firmware Zbtlink wg259 Firmware Zbtlink wg3526 Firmware Zbtlink z8102ax Firmware |
|
| Weaknesses | CWE-506 | |
| CPEs | cpe:2.3:o:zbtlink:cpe2801_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:we1026-5g-wd_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:we1326_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:we2007_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:we2008-dsim_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:we2416_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:we3326_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:we5927_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:we5931_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:we5931ac_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:we826-t3-dsim_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:wg108_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:wg1602_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:wg1608-dsim_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:wg209_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:wg2105_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:wg2107_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:wg259_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:wg3526_firmware:*:*:*:*:*:*:*:* cpe:2.3:o:zbtlink:z8102ax_firmware:*:*:*:*:*:*:*:* |
|
| Vendors & Products |
Zbtlink
Zbtlink cpe2801 Firmware Zbtlink we1026-5g-wd Firmware Zbtlink we1326 Firmware Zbtlink we2007 Firmware Zbtlink we2008-dsim Firmware Zbtlink we2416 Firmware Zbtlink we3326 Firmware Zbtlink we5927 Firmware Zbtlink we5931 Firmware Zbtlink we5931ac Firmware Zbtlink we826-t3-dsim Firmware Zbtlink wg108 Firmware Zbtlink wg1602 Firmware Zbtlink wg1608-dsim Firmware Zbtlink wg209 Firmware Zbtlink wg2105 Firmware Zbtlink wg2107 Firmware Zbtlink wg259 Firmware Zbtlink wg3526 Firmware Zbtlink z8102ax Firmware |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-05T14:20:12.478Z
Reserved: 2026-07-27T16:27:47.648Z
Link: CVE-2026-66747
Updated: 2026-08-05T14:20:07.830Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-08-05T12:30:12Z