How severe is CVE-2024-5540?

CVE-2024-5540 has a CVSS 4.0 base score of 6.9, rated medium severity.

Is CVE-2024-5540 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-5540?

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

Does CVE-2024-5540 have an EU (EUVD) identifier?

Yes. CVE-2024-5540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-55102.

When was CVE-2024-5540 published?

CVE-2024-5540 was published on 2025-11-27 and last updated on 2026-06-17.

CVE-2024-5540

CVE-2024-5540 is a medium-severity vulnerability with a CVSS 4.0 base score of 6.9. 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-79.

Key facts

Severity: Medium (CVSS 4.0 base score 6.9)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-55102
Weakness: CWE-79
Published: 2025-11-27
Last modified: 2026-06-17

Description

The reflective cross-site scripting vulnerability found in ALC WebCTRL and Carrier i-Vu in versions older than 8.0 affects login panels allowing a malicious actor to compromise the client browser .

Frequently asked questions

What is CVE-2024-5540?: The reflective cross-site scripting vulnerability found in ALC WebCTRL and Carrier i-Vu in versions older than 8.0 affects login panels allowing a malicious actor to compromise the client browser .
How severe is CVE-2024-5540?: CVE-2024-5540 has a CVSS 4.0 base score of 6.9, rated medium severity.
Is CVE-2024-5540 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-5540?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-5540 have an EU (EUVD) identifier?: Yes. CVE-2024-5540 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-55102.
When was CVE-2024-5540 published?: CVE-2024-5540 was published on 2025-11-27 and last updated on 2026-06-17.

References

https://www.corporate.carrier.com/product-security/advisories-resources/

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