How severe is CVE-2026-4542?

CVE-2026-4542 has a CVSS 3.x base score of 5.4, 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 low.

Is CVE-2026-4542 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-4542?

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

Does CVE-2026-4542 have an EU (EUVD) identifier?

Yes. CVE-2026-4542 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14294.

When was CVE-2026-4542 published?

CVE-2026-4542 was published on 2026-03-22 and last updated on 2026-06-17.

CVE-2026-4542

CVE-2026-4542 is a medium-severity vulnerability with a CVSS 3.x base score of 5.4. 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-22.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 5.5
CVSS v4: 2.1
EPSS exploit prediction: 0% (23rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14294
Weakness: CWE-22
Published: 2026-03-22
Last modified: 2026-06-17

Description

A vulnerability has been found in SSCMS 4.7.0. The affected element is an unknown function of the file LayerImageController.Submit.cs of the component layerImage Endpoint. Such manipulation of the argument filePaths leads to path traversal. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.

Frequently asked questions

What is CVE-2026-4542?: A vulnerability has been found in SSCMS 4.7.0. The affected element is an unknown function of the file LayerImageController.Submit.cs of the component layerImage Endpoint. Such manipulation of the argument filePaths leads to path traversal. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.
How severe is CVE-2026-4542?: CVE-2026-4542 has a CVSS 3.x base score of 5.4, 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 low.
Is CVE-2026-4542 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (23rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-4542?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-4542 have an EU (EUVD) identifier?: Yes. CVE-2026-4542 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14294.
When was CVE-2026-4542 published?: CVE-2026-4542 was published on 2026-03-22 and last updated on 2026-06-17.

References

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