How severe is CVE-2026-45391?

CVE-2026-45391 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-45391 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-45391?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-45391 have an EU (EUVD) identifier?

Yes. CVE-2026-45391 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29355.

When was CVE-2026-45391 published?

CVE-2026-45391 was published on 2026-05-12 and last updated on 2026-06-17.

CVE-2026-45391

CVE-2026-45391 is a high-severity vulnerability with a CVSS 3.x base score of 7.8. 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-78.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v4: 8.5
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29355
Weakness: CWE-78
Published: 2026-05-12
Last modified: 2026-06-17

Description

A command injection vulnerability in Cribl Edge for Linux versions 3.2.0 through 4.17.0 allows a local unprivileged user to execute arbitrary commands in the context of the Cribl Edge service account.

Frequently asked questions

What is CVE-2026-45391?: A command injection vulnerability in Cribl Edge for Linux versions 3.2.0 through 4.17.0 allows a local unprivileged user to execute arbitrary commands in the context of the Cribl Edge service account.
How severe is CVE-2026-45391?: CVE-2026-45391 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-45391 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-45391?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-45391 have an EU (EUVD) identifier?: Yes. CVE-2026-45391 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29355.
When was CVE-2026-45391 published?: CVE-2026-45391 was published on 2026-05-12 and last updated on 2026-06-17.

References

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