How severe is CVE-2023-4310?

CVE-2023-4310 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-2023-4310 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4310?

CVE-2023-4310 primarily affects Beyondtrust Privileged Remote Access. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-4310?

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-2023-4310 published?

CVE-2023-4310 was published on 2023-09-05 and last updated on 2026-06-17.

CVE-2023-4310

CVE-2023-4310 is a critical-severity vulnerability in Beyondtrust Privileged Remote Access 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. The underlying weakness is classified as CWE-77.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Beyondtrust Privileged Remote Access
Published: 2023-09-05
Last modified: 2026-06-17

Description

BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) versions 23.2.1 and 23.2.2 contain a command injection vulnerability which can be exploited through a malicious HTTP request. Successful exploitation of this vulnerability can allow an unauthenticated remote attacker to execute underlying operating system commands within the context of the site user. This issue is fixed in version 23.2.3.

Frequently asked questions

What is CVE-2023-4310?: BeyondTrust Privileged Remote Access (PRA) and Remote Support (RS) versions 23.2.1 and 23.2.2 contain a command injection vulnerability which can be exploited through a malicious HTTP request. Successful exploitation of this vulnerability can allow an unauthenticated remote attacker to execute underlying operating system commands within the context of the site user. This issue is fixed in version 23.2.3.
How severe is CVE-2023-4310?: CVE-2023-4310 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-2023-4310 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4310?: CVE-2023-4310 primarily affects Beyondtrust Privileged Remote Access. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-4310?: 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-2023-4310 published?: CVE-2023-4310 was published on 2023-09-05 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:beyondtrust:privileged_remote_access:23.2.1:*:*:*:*:*:*:*
cpe:2.3:a:beyondtrust:privileged_remote_access:23.2.2:*:*:*:*:*:*:*
cpe:2.3:a:beyondtrust:remote_support:23.2.1:*:*:*:*:*:*:*
cpe:2.3:a:beyondtrust:remote_support:23.2.2:*:*:*:*:*:*:*

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