How severe is CVE-2023-28323?

CVE-2023-28323 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-2023-28323 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28323?

CVE-2023-28323 primarily affects Ivanti Endpoint Manager. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-28323?

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-2023-28323 published?

CVE-2023-28323 was published on 2023-07-01 and last updated on 2026-06-17.

CVE-2023-28323

CVE-2023-28323 is a critical-severity vulnerability in Ivanti Endpoint Manager 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 3% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Ivanti Endpoint Manager
Published: 2023-07-01
Last modified: 2026-06-17

Description

A deserialization of untrusted data exists in EPM 2022 Su3 and all prior versions that allows an unauthenticated user to elevate rights. This exploit could potentially be used in conjunction with other OS (Operating System) vulnerabilities to escalate privileges on the machine or be used as a stepping stone to get to other network attached machines.

Frequently asked questions

What is CVE-2023-28323?: A deserialization of untrusted data exists in EPM 2022 Su3 and all prior versions that allows an unauthenticated user to elevate rights. This exploit could potentially be used in conjunction with other OS (Operating System) vulnerabilities to escalate privileges on the machine or be used as a stepping stone to get to other network attached machines.
How severe is CVE-2023-28323?: CVE-2023-28323 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-2023-28323 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28323?: CVE-2023-28323 primarily affects Ivanti Endpoint Manager. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-28323?: 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-2023-28323 published?: CVE-2023-28323 was published on 2023-07-01 and last updated on 2026-06-17.

References

https://forums.ivanti.com/s/article/SA-2023-06-20-CVE-2023-28323

Affected products (5)

cpe:2.3:a:ivanti:endpoint_manager:*:*:*:*:*:*:*:*
cpe:2.3:a:ivanti:endpoint_manager:2022:-:*:*:*:*:*:*
cpe:2.3:a:ivanti:endpoint_manager:2022:su1:*:*:*:*:*:*
cpe:2.3:a:ivanti:endpoint_manager:2022:su2:*:*:*:*:*:*
cpe:2.3:a:ivanti:endpoint_manager:2022:su3:*:*:*:*:*:*

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