CVE-2022-31810Network attack vector

Server crash via oversized configuration login packet

Published Jul 11, 2023 · Updated Mar 5, 2025

Stack-based buffer overflow in Siemens SiPass integrated before 2.90.3.8 allows remote attackers to crash the server application. The server application fails to validate the length of data packets received during configuration client login, overflowing a stack buffer. No authentication or user interaction is required; a crafted login packet interrupts the access-control server by terminating its application.

CVSS severity7.5
High
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in Siemens SiPass integrated before 2.90.3.8 allows remote attackers to crash the server application. The server application fails to validate the length of data packets received during configuration client login, overflowing a stack buffer. No authentication or user interaction is required; a crafted login packet interrupts the access-control server by terminating its application.

The record

CVE
CVE-2022-31810
Published
Jul 11, 2023
Updated
Mar 5, 2025
Vendor
Siemens
Product
SiPass integrated
Classifications
CWE-20, CWE-787, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 11, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 5, 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?

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

  1. Affected versionversion=All versions < V2.90.3.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · SiPass integratedversion=All versions < V2.90.3.8

Published CVSS scores

7.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-787Out-of-bounds Write
T1499.004Application or System Exploitation

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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