CVE-2026-11554

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

0.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 10.9% 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:N/VI:L/VA:N/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

2026-06-08 17:30Z2 MO AGO

Last updated

2026-06-09 12:33Z2 MO AGO

Reserved

2026-06-08

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:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-266Incorrect Privilege AssignmentBase
• CWE-272Least Privilege ViolationBase

Data version

5.2

Document digest

81dce551e638c3d820fec900f6f6340b0dddccfd3169fb4edd72882d63e86a5c

• vuldb.comVDB-369164 | TOTOLINK CP450 vsftpd vsftpd.conf least privilege violationhttps://vuldb.com/vuln/369164vdb-entry
• vuldb.comVDB-369164 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/369164/ctisignaturepermissions-required
• vuldb.comCVE-2026-11554 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-11554third-party-advisory
• vuldb.comSubmit #834821 | TOTOLink CP450 V4.1.0cu.747 Misconfigurationhttps://vuldb.com/submit/834821third-party-advisory
• www.notion.sohttps://www.notion.so/TOTOLink-CP450-V4-1-0cu-747-3671f5ba989080c3b39ac3984d2ff44d?source=copy_linkexploit
• www.totolink.nethttps://www.totolink.net/product