CVE-2022-31812Network attack vector

Unauthenticated service interruption via packet integrity check

Published May 23, 2025 · Updated May 23, 2025

Out-of-bounds read in Siemens SiPass integrated before 2.95.3.18 allows remote attackers to interrupt the server via crafted packets. The packet-integrity routine reads past its allocated buffer while validating attacker-controlled incoming packet data. No authentication or user interaction is required; successful triggering interrupts the affected server without reported data disclosure or modification.

CVSS severity8.7
High
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Siemens SiPass integrated before 2.95.3.18 allows remote attackers to interrupt the server via crafted packets. The packet-integrity routine reads past its allocated buffer while validating attacker-controlled incoming packet data. No authentication or user interaction is required; successful triggering interrupts the affected server without reported data disclosure or modification.

The record

CVE
CVE-2022-31812
Published
May 23, 2025
Updated
May 23, 2025
Vendor
Siemens
Product
SiPass integrated
Classifications
CWE-125, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 23, 2025CVE publishedPublication date reported by the CVE source.
  2. May 23, 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=0 <V2.95.3.18

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Siemens · SiPass integratedversion=0 <V2.95.3.18

Published CVSS scores

7.5Siemens AGCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7Siemens AGCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1499Endpoint Denial of Service

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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