How severe is CVE-2023-43509?

CVE-2023-43509 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-43509 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-43509?

CVE-2023-43509 primarily affects Arubanetworks Clearpass Policy Manager. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-43509?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-43509 published?

CVE-2023-43509 was published on 2023-10-25 and last updated on 2026-06-17.

CVE-2023-43509

CVE-2023-43509 is a medium-severity vulnerability in Arubanetworks Clearpass Policy Manager with a CVSS 3.x base score of 5.8. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.8)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Arubanetworks Clearpass Policy Manager
Published: 2023-10-25
Last modified: 2026-06-17

Description

A vulnerability in the web-based management interface of ClearPass Policy Manager could allow an unauthenticated remote attacker to send notifications to computers that are running ClearPass OnGuard. These notifications can then be used to phish users or trick them into downloading malicious software.

Frequently asked questions

What is CVE-2023-43509?: A vulnerability in the web-based management interface of ClearPass Policy Manager could allow an unauthenticated remote attacker to send notifications to computers that are running ClearPass OnGuard. These notifications can then be used to phish users or trick them into downloading malicious software.
How severe is CVE-2023-43509?: CVE-2023-43509 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-43509 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-43509?: CVE-2023-43509 primarily affects Arubanetworks Clearpass Policy Manager. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-43509?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-43509 published?: CVE-2023-43509 was published on 2023-10-25 and last updated on 2026-06-17.

References

https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2023-016.txt

Affected products (7)

cpe:2.3:a:arubanetworks:clearpass_policy_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:arubanetworks:clearpass_policy_manager:6.9.13:-:*:*:*:*:*:*
cpe:2.3:a:arubanetworks:clearpass_policy_manager:6.9.13:cumulative_hotfix_patch_2:*:*:*:*:*:*
cpe:2.3:a:arubanetworks:clearpass_policy_manager:6.9.13:cumulative_hotfix_patch_3:*:*:*:*:*:*
cpe:2.3:a:arubanetworks:clearpass_policy_manager:6.10.8:-:*:*:*:*:*:*
cpe:2.3:a:arubanetworks:clearpass_policy_manager:6.10.8:cumulative_hotfix_patch_2:*:*:*:*:*:*
cpe:2.3:a:arubanetworks:clearpass_policy_manager:6.10.8:cumulative_hotfix_patch_5:*:*:*:*:*:*

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