CVE-2026-9405

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total 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

1.73% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 77.4% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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

Deferred. NVD last modified this record on 2026-07-23.

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

2026-05-24 23:15Z5 MO AGO

Last updated

2026-05-26 16:10Z5 MO AGO

Reserved

2026-05-24

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Critical (CVSS 9.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

Weaknesses

• 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

d506dc7f6ced3833ee3f690f64042b93a261fb900a49f31c27e3ba7f4ab62940

• vuldb.comVDB-365386 | Totolink A8000RU Web Management cstecgi.cgi setGameSpeedCfg os command injectionhttps://vuldb.com/vuln/365386vdb-entrytechnical-description
• vuldb.comVDB-365386 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/365386/ctisignaturepermissions-required
• vuldb.comSubmit #813440 | Totolink A8000RU 7.1cu.643_b20200521 Command Injectionhttps://vuldb.com/submit/813440third-party-advisory
• github.comhttps://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_337/README.mdexploit
• www.totolink.nethttps://www.totolink.net/product