CVE-2026-5339A vulnerability was detected in Tenda G103 1.0.0.5.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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A vulnerability was detected in Tenda G103 1.0.0.5. The impacted element is the function action_set_net_settings of the file gpon.lua of the component Setting Handler. Performing a manipulation of the argument authLoid/authLoidPassword/authPassword/authSerialNo/authType/oltType/usVlanId/usVlanPriority results in command injection. It is possible to initiate the attack remotely. The exploit is now public and may be used.
- CVSS
- 8.8 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-74, CWE-77
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 24, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
tenda g103_firmware tenda:g103_firmware | 1.0.0.5 | NVD |
References
- https://github.com/ZZ2266/.github.io/tree/main/Tenda%20G103/authLoidexploit, third-party-advisory
- https://vuldb.com/submit/781132third-party-advisory, vdb-entry
- https://vuldb.com/submit/781133third-party-advisory, vdb-entry
- https://vuldb.com/submit/781134third-party-advisory, vdb-entry
- https://vuldb.com/submit/781135third-party-advisory, vdb-entry
- https://vuldb.com/submit/781142third-party-advisory, vdb-entry
- https://vuldb.com/submit/781143third-party-advisory, vdb-entry
- https://vuldb.com/submit/781144third-party-advisory, vdb-entry
- https://vuldb.com/submit/781145third-party-advisory, vdb-entry
- https://vuldb.com/vuln/354670third-party-advisory, vdb-entry
- https://vuldb.com/vuln/354670/ctipermissions-required, vdb-entry
- https://www.tenda.com.cn/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.