CVE-2023-26078Public exploit

SYSTEM privilege escalation via MSI repair console

Published Jul 24, 2023 · Updated Feb 13, 2025

Privilege escalation in Atera Agent before 1.8.4.9 allows local users to gain SYSTEM privileges through an MSI repair operation. The cached Windows Installer package lets an unprivileged user start a repair that opens temporary Command Prompt windows in a SYSTEM context. The attacker must use the interface to freeze a console window, follow a Properties hyperlink, and launch a browser with SYSTEM rights.

CVSS severity7.8
High
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in Atera Agent before 1.8.4.9 allows local users to gain SYSTEM privileges through an MSI repair operation. The cached Windows Installer package lets an unprivileged user start a repair that opens temporary Command Prompt windows in a SYSTEM context. The attacker must use the interface to freeze a console window, follow a Properties hyperlink, and launch a browser with SYSTEM rights.

The record

CVE
CVE-2023-26078
Published
Jul 24, 2023
Updated
Feb 13, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-648, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-648Incorrect Use of Privileged APIs
T1068Exploitation for Privilege Escalation

Public exploit references

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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