CVE-2026-5101

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

2.43% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 84.1% of scored records. A rank, not a probability.

NVD base score

2.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-03-29 23:00Z7 MO AGO

Last updated

2026-03-30 14:52Z7 MO AGO

Reserved

2026-03-29

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class
• CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')Class
• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.2

Document digest

aaae338c901b4d71a8510b6e17cb0a9d90af2fb626b27da691b3d9d446953b9d

• vuldb.comVDB-354126 | Totolink A3300R Parameter cstecgi.cgi setLanCfg command injectionhttps://vuldb.com/vuln/354126vdb-entrytechnical-description
• vuldb.comVDB-354126 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/354126/ctisignaturepermissions-required
• vuldb.comSubmit #779128 | Totolink A3300R 17.0.0cu.557_b20221024 Command Injectionhttps://vuldb.com/submit/779128third-party-advisory
• github.comhttps://github.com/Litengzheng/vul_db/blob/main/A3300R/vul_39/README.mdexploit
• www.totolink.nethttps://www.totolink.net/product