How severe is CVE-2026-5383?

CVE-2026-5383 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2026-5383 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-5383?

CVE-2026-5383 affects Runzero Runzero Platform. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-5383?

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

Does CVE-2026-5383 have an EU (EUVD) identifier?

Yes. CVE-2026-5383 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19701.

When was CVE-2026-5383 published?

CVE-2026-5383 was published on 2026-04-07 and last updated on 2026-06-17.

CVE-2026-5383

CVE-2026-5383 is a medium-severity vulnerability in Runzero Runzero Platform with a CVSS 3.x base score of 4.4. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-19701
Weakness: CWE-863
Affected product: Runzero Runzero Platform
Published: 2026-04-07
Last modified: 2026-06-17

Description

An issue that could allow access to Explorer groups from outside of the authorized organization scope has been resolved. This is an instance of CWE-863: Incorrect Authorization, and has an estimated CVSS score of CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L (4.4 Medium). This issue was fixed in version 4.0.260208.0 of the runZero Explorer.

Frequently asked questions

What is CVE-2026-5383?: An issue that could allow access to Explorer groups from outside of the authorized organization scope has been resolved. This is an instance of CWE-863: Incorrect Authorization, and has an estimated CVSS score of CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L (4.4 Medium). This issue was fixed in version 4.0.260208.0 of the runZero Explorer.
How severe is CVE-2026-5383?: CVE-2026-5383 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2026-5383 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-5383?: CVE-2026-5383 affects Runzero Runzero Platform. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-5383?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-5383 have an EU (EUVD) identifier?: Yes. CVE-2026-5383 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-19701.
When was CVE-2026-5383 published?: CVE-2026-5383 was published on 2026-04-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:runzero:runzero_platform:*:*:*:*:*:*:*:*

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