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Secure Integration Server CVE-2022-2547

HIGH
NULL Pointer Dereference (CWE-476)
2022-08-17 ics-cert@hq.dhs.gov
Denial Of Service Null Pointer Dereference Opc Secure Integration Server Edgeconnector Uagates Opc Ua C Software Development Kit Edgeaggregator Softing
7.5
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-476
OWASP Top 10:2025
A10:2025 - Mishandling of Exceptional Conditions
ASVS 5.0
V16 - Security Logging and Error Handling Null pointer safety, defensive checks
MITRE ATT&CK

1 technique across 1 tactic: Impact

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived

A remote attacker could crash the application by dereferencing a null pointer by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 1.3% exploitation probability (EPSS)

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AnalysisAI

A crafted HTTP packet without a content-type header can create a denial-of-service condition in Softing Secure Integration Server V1.22. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Check pointers before dereferencing. Use static analysis tools to detect null pointer paths.

Affects your stack

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Technical ContextAI · show details

This vulnerability is classified as NULL Pointer Dereference (CWE-476), which allows attackers to crash the application by dereferencing a null pointer. A crafted HTTP packet without a content-type header can create a denial-of-service condition in Softing Secure Integration Server V1.22. Affected products include: Softing Edgeaggregator, Softing Edgeconnector, Softing Opc, Softing Opc Ua C\+\+ Software Development Kit, Softing Secure Integration Server.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

DescriptionNVD

A crafted HTTP packet without a content-type header can create a denial-of-service condition in Softing Secure Integration Server V1.22.

Threat Intelligence Overview

EPSS Score
1.3%
Top 33% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 1.3%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Null Pointer Dereference MEDIUM

A null pointer dereference occurs when a program attempts to access memory through a pointer that has been set to NULL (address 0x0).

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:a:softing:edgeaggregator:3.1:*:*:*:*:*:*:*
cpe:2.3:a:softing:edgeconnector:3.1:*:*:*:*:*:*:*
cpe:2.3:a:softing:opc:5.2:*:*:*:*:*:*:*
cpe:2.3:a:softing:opc_ua_c\+\+_software_development_kit:6:*:*:*:*:*:*:*
cpe:2.3:a:softing:secure_integration_server:1.22:*:*:*:*:*:*:*
cpe:2.3:a:softing:uagates:1.74:*:*:*:*:*:*:*

More in Secure Integration Server

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CVE-2022-2334 HIGH POC
7.2 Aug 17

The application searches for a library dll that is not found. Rated high severity (CVSS 7.2), this vulnerability is remo
CVE-2022-1373 HIGH POC
7.2 Aug 17

The “restore configuration” feature of Softing Secure Integration Server V1.22 is vulnerable to a directory traversal vu
CVE-2022-2336 CRITICAL
9.8 Aug 17

Softing Secure Integration Server, edgeConnector, and edgeAggregator software ships with the default administrator crede
CVE-2023-41151 HIGH
7.5 Dec 14

An uncaught exception issue discovered in Softing OPC UA C++ SDK before 6.30 for Windows operating system may cause the

CVE-2022-37453 HIGH
7.5 Oct 20

An issue was discovered in Softing OPC UA C++ SDK before 6.10. Rated high severity (CVSS 7.5), this vulnerability is rem
CVE-2022-2337 HIGH
7.5 Aug 17

A crafted HTTP packet with a missing HTTP URI can create a denial-of-service condition in Softing Secure Integration Ser
CVE-2022-2335 HIGH
7.5 Aug 17

A crafted HTTP packet with a -1 content-length header can create a denial-of-service condition in Softing Secure Integra
CVE-2022-1748 HIGH
7.5 Aug 17

Softing OPC UA C++ Server SDK, Secure Integration Server, edgeConnector, edgeAggregator, OPC Suite, and uaGate are affec
CVE-2022-1069 HIGH
7.5 Aug 17

A crafted HTTP packet with a large content-length header can create a denial-of-service condition in Softing Secure Inte
CVE-2021-40873 HIGH
7.5 Nov 10

An issue was discovered in Softing Industrial Automation OPC UA C++ SDK before 5.66, and uaToolkit Embedded before 1.40.
CVE-2021-40871 HIGH
7.5 Nov 10

An issue was discovered in Softing Industrial Automation OPC UA C++ SDK before 5.66. Rated high severity (CVSS 7.5), thi
CVE-2022-2338 MEDIUM
5.3 Aug 17

Softing Secure Integration Server V1.22 is vulnerable to authentication bypass via a machine-in-the-middle attack. Rated

Same weakness CWE-476 – NULL Pointer Dereference

View all
CVE-2016-0742 HIGH
7.5
CVE-2014-3470 MEDIUM
4.3
CVE-2020-1967 HIGH POC
7.5
CVE-2017-3730 HIGH POC
7.5
CVE-2017-3169 CRITICAL POC
9.8
CVE-2016-4957 HIGH
7.5
CVE-2021-3449 MEDIUM
5.9
CVE-2015-3194 HIGH
7.5

Same technique Denial Of Service

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CVE-2015-5119 CRITICAL POC
9.8
CVE-2011-2462 CRITICAL POC
9.8
CVE-2011-0611 HIGH POC
8.8
CVE-2012-1889 HIGH POC
8.8
CVE-2012-0507 CRITICAL POC
9.8
CVE-2014-1761 HIGH POC
7.8
CVE-2015-5122 CRITICAL POC
9.8
CVE-2011-0609 HIGH POC
7.8

References

Advisories & patches
ADVISORY https://industrial.softing.com/fileadmin/psirt/downloads/syt-2022-4.html REF https://www.cisa.gov/uscert/ics/advisories/icsa-22-228-04

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