VDB-211922 · CVE-2022-39823 · EUVD-2022-42268

Softing OPC UA C++ SDK up to 6.9 Browse Request use after free

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Softing OPC UA C++ SDK up to 6.9 and classified as critical. The impacted element is an unknown function of the component Browse Request Handler. Such manipulation leads to use after free. This vulnerability is uniquely identified as CVE-2022-39823. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Softing OPC UA C++ SDK up to 6.9. It has been rated as critical. Affected by this issue is an unknown code of the component Browse Request Handler. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Softing OPC UA C++ SDK 5.66 through 6.x before 6.10. An OPC/UA browse request exceeding the server limit on continuation points may cause a use-after-free error

The weakness was disclosed 10/21/2022. The advisory is available at industrial.softing.com. This vulnerability is handled as CVE-2022-39823 since 09/05/2022. The technical details are unknown and an exploit is not available.

Upgrading to version 6.10 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-42268). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Softing

Name

OPC UA C++ SDK

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OPC UA C++ SDK 6.10

Timelineinfo

09/05/2022 🔍
10/21/2022 +46 days 🔍
10/21/2022 +0 days 🔍
07/03/2026 +1351 days 🔍

Sourcesinfo

Advisory: industrial.softing.com
Status: Confirmed

CVE: CVE-2022-39823 (🔍)
GCVE (CVE): GCVE-0-2022-39823
GCVE (VulDB): GCVE-100-211922
EUVD: 🔍

Entryinfo

Created: 10/21/2022 07:13
Updated: 07/03/2026 21:14
Changes: 10/21/2022 07:13 (40), 11/19/2022 07:07 (11), 05/09/2025 06:05 (15), 07/03/2026 21:14 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.