PatchSiren cyber security CVE debrief
CVE-2026-11554 TOTOLINK CVE debrief
A vulnerability was determined in TOTOLINK CP450 4.1.0cu.747. This vulnerability affects unknown code of the file /etc/vsftpd.conf of the component vsftpd. This manipulation causes least privilege violation. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.
- Vendor
- TOTOLINK
- Product
- CP450
- CVSS
- LOW 2.1
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-06-08
- Original CVE updated
- 2026-06-09
- Advisory published
- 2026-06-08
- Advisory updated
- 2026-06-09
Who should care
Users of TOTOLINK CP450 4.1.0cu.747 should apply patches or mitigations to prevent exploitation of this vulnerability.
Technical summary
The vulnerability has a CVSS score of 2.1 and is classified as LOW severity. The CVSS vector is 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.
Defensive priority
Low
Recommended defensive actions
- Apply patches or updates provided by the vendor to fix the vulnerability.
- Restrict access to the vsftpd component to prevent remote exploitation.
- Monitor for publicly disclosed exploits and adjust security controls accordingly.
Evidence notes
The vulnerability was publicly disclosed on 2026-06-08T18:16:32.670Z and modified on 2026-06-09T01:32:36.950Z. The CVE record can be found at [cve-org].
Official resources
TOTOLINK CP450 4.1.0cu.747 has a vsftpd vulnerability that can cause a least privilege issue. The attack may be initiated remotely. The exploit has been publicly disclosed.