No exploitation reportedFix available

CVE-2023-28323

Q: Is CVE-2023-28323 actively exploited?

Active exploitation of CVE-2023-28323 has not been confirmed. Its EPSS score was 3.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2023-28323?

CVE-2023-28323 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2023-07-01
Fixed in2022
WeaknessCWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2023-07-0100:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-28323?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-28323?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Ivanti endpoint manager

Branch	Affected	Fixed in	Source
2022.x	< 2022	2022	NVD
2022.x	= 2022	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Ivanti endpoint manager to 2022

Advisories and patches

forums.ivanti.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2025-04-23
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.19.82025-05-05
NVDCVSS 3.19.8read 2026-10-23
CISA-ADPweakness (CWE)CWE-5022025-05-05
NVDweakness (CWE)CWE-502read 2026-10-23
FIRST EPSSEPSS score3.1 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2023-07-01
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-28323?

Is CVE-2023-28323 actively exploited?

Active exploitation of CVE-2023-28323 has not been confirmed. Its EPSS score was 3.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-28323?

CVE-2023-28323 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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