CVE-2023-44077

Local privilege escalation via unguarded XPC services

Published Jan 17, 2024 · Updated Jun 17, 2025

Privilege escalation in Studio Network Solutions ShareBrowser before 7.0 on macOS allows local users to access root XPC services. The EvoSlingshotHelper and sbdcmounthelper daemons accept XPC connections without validating the calling process's code signature, exposing privileged service methods to untrusted clients. Access requires a local macOS user able to connect to the Mach services; successful abuse grants the helpers' root privileges and access to process, API, mount, and credential-handling functions.

CVSS severity9.8
Critical
EPSS probability0.39%
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 Studio Network Solutions ShareBrowser before 7.0 on macOS allows local users to access root XPC services. The EvoSlingshotHelper and sbdcmounthelper daemons accept XPC connections without validating the calling process's code signature, exposing privileged service methods to untrusted clients. Access requires a local macOS user able to connect to the Mach services; successful abuse grants the helpers' root privileges and access to process, API, mount, and credential-handling functions.

The record

CVE
CVE-2023-44077
Published
Jan 17, 2024
Updated
Jun 17, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-347, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 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

9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/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.

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

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature
T1068Exploitation for Privilege Escalation

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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