How severe is CVE-2023-2319?

CVE-2023-2319 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-2319 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-2319?

CVE-2023-2319 primarily affects Redhat Enterprise Linux High Availability. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-2319?

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

When was CVE-2023-2319 published?

CVE-2023-2319 was published on 2023-05-17 and last updated on 2026-06-17.

CVE-2023-2319

CVE-2023-2319 is a critical-severity vulnerability in Redhat Enterprise Linux High Availability with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Redhat Enterprise Linux High Availability
Published: 2023-05-17
Last modified: 2026-06-17

Description

It was discovered that an update for PCS package in RHBA-2023:2151 erratum released as part of Red Hat Enterprise Linux 9.2 failed to include the fix for the Webpack issue CVE-2023-28154 (for PCS package), which was previously addressed in Red Hat Enterprise Linux 9.1 via erratum RHSA-2023:1591. The CVE-2023-2319 was assigned to that Red Hat specific security regression in Red Hat Enterprise Linux 9.2.

Frequently asked questions

What is CVE-2023-2319?: It was discovered that an update for PCS package in RHBA-2023:2151 erratum released as part of Red Hat Enterprise Linux 9.2 failed to include the fix for the Webpack issue CVE-2023-28154 (for PCS package), which was previously addressed in Red Hat Enterprise Linux 9.1 via erratum RHSA-2023:1591. The CVE-2023-2319 was assigned to that Red Hat specific security regression in Red Hat Enterprise Linux 9.2.
How severe is CVE-2023-2319?: CVE-2023-2319 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-2319 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-2319?: CVE-2023-2319 primarily affects Redhat Enterprise Linux High Availability. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-2319?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-2319 published?: CVE-2023-2319 was published on 2023-05-17 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:clusterlabs:pcs:0.11.4-6.el9:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_high_availability:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_high_availability_eus:9.2:*:*:*:*:*:*:*

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