Is CVE-2026-5376 in the CISA KEV catalog?

No. CVE-2026-5376 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-5376?

CVE-2026-5376 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2026-5376?

CVE-2026-5376 has an EPSS score of 0.21% (11th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2026-5376?

Upgrade runzero platform to 4.0.260203.0 or later.

CVE & CISA-KEV Catalog

CVE-2026-5376

MEDIUM

5.9

CVSS v3

NVD

Description

An issue that could prevent session inactivity timeouts from triggering due to automatic page reloading has been resolved. This is an instance of CWE-613: Insufficient Control of Resources After Expiration or Release, and has an estimated CVSS score of CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N (5.9 Medium). This issue was fixed in version 4.0.260203.0 of the runZero Platform.

CWE-613

How to fix

Remediation Available

runzero platformNVD

Affected:< 4.0.260203.0Fixed in:4.0.260203.0CVE-2026-5376derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

Exploit Intelligence

0.21%probability of exploitation in 30 days

11thpercentile

Low risk: more likely to be exploited than 11% of all known CVEs.

References

Vendor Advisory1

runzero.com

Release Notes1

help.runzero.com

Related Vulnerabilities

Other CWE-613 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-2595	Critical	9.8	17%	-	-
CVE-2023-30403	High	7.5	15%	-	-
CVE-2020-27422	Critical	9.8	7.8%	-	-
CVE-2014-3616	Medium	4.3	5.7%	-	Fix
CVE-2021-3144	Critical	9.1	5.2%	-	Fix
CVE-2021-24019	High	8.1	3.8%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-21.