CVE-2023-28133

Privilege escalation via crafted OpenSSL configuration

Published Jul 23, 2023 · Updated Oct 24, 2024

Local privilege escalation in Check Point Endpoint Security Client E87.30 allows local users to execute code with elevated privileges. A privileged client operation consumes an attacker-crafted OpenSSL configuration file, but Check Point has not disclosed the responsible process or directive. Exploitation requires local access and interaction with the affected Windows client; successful exploitation grants elevated execution.

CVSS severity7.8
High
EPSS probability5.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in Check Point Endpoint Security Client E87.30 allows local users to execute code with elevated privileges. A privileged client operation consumes an attacker-crafted OpenSSL configuration file, but Check Point has not disclosed the responsible process or directive. Exploitation requires local access and interaction with the affected Windows client; successful exploitation grants elevated execution.

The record

CVE
CVE-2023-28133
Published
Jul 23, 2023
Updated
Oct 24, 2024
Vendor
Check Point Software Technologies
Product
Harmony Endpoint
Classifications
CWE-732
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 24, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=E87.x before E81.31

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Check Point Software Technologies · Harmony Endpointversion=E87.x before E81.31

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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