CVE-2023-27199

Root access via LD_PRELOAD library injection

Published Jul 5, 2023 · Updated Dec 4, 2024

Authorization bypass in PAX Technology A930 PayDroid 7.1.1_Virgo_V04.5.02_20220722 allows local users to gain root access. The dynamic loader honors LD_PRELOAD for attacker-controlled shared libraries, enabling replacement of exported authorization functions or forced invocation of privileged exports. Shell access to the physical terminal is required; successful exploitation grants root execution on the payment device.

CVSS severity6.7
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in PAX Technology A930 PayDroid 7.1.1_Virgo_V04.5.02_20220722 allows local users to gain root access. The dynamic loader honors LD_PRELOAD for attacker-controlled shared libraries, enabling replacement of exported authorization functions or forced invocation of privileged exports. Shell access to the physical terminal is required; successful exploitation grants root execution on the payment device.

The record

CVE
CVE-2023-27199
Published
Jul 5, 2023
Updated
Dec 4, 2024
Vendor
PAX Technology
Product
PAX A930
Classifications
CWE-290, T1574.006
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Jul 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 4, 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=PayDroid_7.1.1_Virgo_V04.5.02_20220722

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

PAX Technology · PAX A930version=PayDroid_7.1.1_Virgo_V04.5.02_20220722

Published CVSS scores

6.7NIST NVDCVSS:3.1/AV:L/AC:L/PR:H/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1574.006Hijack Execution Flow: Dynamic Linker Hijacking

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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