Medium severity6.3NVD Advisory· Published Mar 30, 2026· Updated Apr 29, 2026
CVE-2026-5102
CVE-2026-5102
Description
A security flaw has been discovered in Totolink A3300R 17.0.0cu.557_b20221024. This vulnerability affects the function setSmartQosCfg of the file /cgi-bin/cstecgi.cgi of the component Parameter Handler. The manipulation of the argument qos_up_bw results in command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.
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Affected products
2- cpe:2.3:o:totolink:a3300r_firmware:17.0.0cu.557_b20221024:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
5- github.com/Litengzheng/vul_db/blob/main/A3300R/vul_40/README.mdnvdExploitThird Party Advisory
- vuldb.com/vuln/354127nvdThird Party AdvisoryVDB Entry
- vuldb.com/vuln/354127/ctinvdThird Party AdvisoryVDB Entry
- vuldb.com/submit/779129nvdPermissions RequiredVDB Entry
- www.totolink.netnvdProduct
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