How severe is CVE-2019-12589?

CVE-2019-12589 has a CVSS 3.x base score of 8.8, 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-2019-12589 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-12589?

CVE-2019-12589 affects Firejail Project Firejail. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-12589?

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.

When was CVE-2019-12589 published?

CVE-2019-12589 was published on 2019-06-03 and last updated on 2026-06-17.

CVE-2019-12589

CVE-2019-12589 is a high-severity vulnerability in Firejail Project Firejail with a CVSS 3.x base score of 8.8. 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-732.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 4.6
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Firejail Project Firejail
Published: 2019-06-03
Last modified: 2026-06-17

Description

In Firejail before 0.9.60, seccomp filters are writable inside the jail, leading to a lack of intended seccomp restrictions for a process that is joined to the jail after a filter has been modified by an attacker.

Frequently asked questions

What is CVE-2019-12589?: In Firejail before 0.9.60, seccomp filters are writable inside the jail, leading to a lack of intended seccomp restrictions for a process that is joined to the jail after a filter has been modified by an attacker.
How severe is CVE-2019-12589?: CVE-2019-12589 has a CVSS 3.x base score of 8.8, 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-2019-12589 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-12589?: CVE-2019-12589 affects Firejail Project Firejail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-12589?: 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.
When was CVE-2019-12589 published?: CVE-2019-12589 was published on 2019-06-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:firejail_project:firejail:*:*:*:*:-:*:*:*

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