CVE-2026-5102

LOW EPSS 80.0%
Published Mar 30, 20263mo ago · Modified Jun 17, 20261w ago
2.1 CVSS 4.0
Low
Find Similar
Published Mar 30, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
2.1
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
80.0% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 2

CWE-74
CWE-77 Command Injection Injection

Affected Products 2

VendorProductVersionRange
totolinka3300r_firmware17.0.0cu.557_b20221024any
totolinka3300r*any

References 5

  • github.com https://github.com/Litengzheng/vul_db/blob/main/A3300R/vul_40/README.md
    ExploitThird Party Advisory
  • vuldb.com https://vuldb.com/submit/779129
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/vuln/354127
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/vuln/354127/cti
    Third Party AdvisoryVDB Entry
  • totolink.net https://www.totolink.net/
    Product

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.