How severe is CVE-2026-11554?

CVE-2026-11554 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-11554 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-11554?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-11554 have an EU (EUVD) identifier?

Yes. CVE-2026-11554 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35177.

When was CVE-2026-11554 published?

CVE-2026-11554 was published on 2026-06-08 and last updated on 2026-06-17.

CVE-2026-11554

CVE-2026-11554 is a medium-severity vulnerability with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-266.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
CVSS v4: 2.1
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-35177
Weakness: CWE-266
Published: 2026-06-08
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-11554?: 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.
How severe is CVE-2026-11554?: CVE-2026-11554 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-11554 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-11554?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-11554 have an EU (EUVD) identifier?: Yes. CVE-2026-11554 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-35177.
When was CVE-2026-11554 published?: CVE-2026-11554 was published on 2026-06-08 and last updated on 2026-06-17.

References

Other CWE-266 (Incorrect Privilege Assignment) vulnerabilities

CVE-2026-23800 — Critical (CVSS 10.0): Incorrect Privilege Assignment vulnerability in Modular DS modular-connector allows Privilege Escalation.This issue…
CVE-2025-41115 — Critical (CVSS 10.0): SCIM provisioning was introduced in Grafana Enterprise and Grafana Cloud in April to improve how organizations manage…
CVE-2024-9479 — Critical (CVSS 10.0): Improper Privilege Management vulnerability in upKeeper Solutions upKeeper Instant Privilege Access allows Privilege…
CVE-2024-9478 — Critical (CVSS 10.0): Improper Privilege Management vulnerability in upKeeper Solutions upKeeper Instant Privilege Access allows Privilege…
CVE-2026-42368 — Critical (CVSS 9.9): A privilege escalation vulnerability exists in the Web Interface functionality of GeoVision LPC2011/LPC2211 1.10. A…
CVE-2026-32922 — Critical (CVSS 9.9): OpenClaw before 2026.3.11 contains a privilege escalation vulnerability in device.token.rotate that allows callers with…

Browse all CWE-266 (Incorrect Privilege Assignment) vulnerabilities →