How severe is CVE-2023-4340?

CVE-2023-4340 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-2023-4340 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4340?

CVE-2023-4340 affects Broadcom Raid Controller Web Interface. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4340?

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-2023-4340 published?

CVE-2023-4340 was published on 2023-08-15 and last updated on 2026-06-17.

CVE-2023-4340

CVE-2023-4340 is a critical-severity vulnerability in Broadcom Raid Controller Web Interface 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% (44th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Broadcom Raid Controller Web Interface
Published: 2023-08-15
Last modified: 2026-06-17

Description

Broadcom RAID Controller is vulnerable to Privilege escalation by taking advantage of the Session prints in the log file

Frequently asked questions

What is CVE-2023-4340?: Broadcom RAID Controller is vulnerable to Privilege escalation by taking advantage of the Session prints in the log file
How severe is CVE-2023-4340?: CVE-2023-4340 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-2023-4340 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4340?: CVE-2023-4340 affects Broadcom Raid Controller Web Interface. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4340?: 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-2023-4340 published?: CVE-2023-4340 was published on 2023-08-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:broadcom:raid_controller_web_interface:51.12.0-2779:*:*:*:*:*:*:*

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