libIEC61850 up to 1.4.2 COTP Message length memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability classified as critical has been found in libIEC61850 up to 1.4.2. This affects an unknown function of the component COTP Message Handler. The manipulation of the argument length as part of a Length Field leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In libIEC61850 before version 1.4.3, when a message with COTP message length field with value < 4 is received an integer underflow will happen leading to heap buffer overflow. This can cause an application crash or on some platforms even the execution of remote code. If your application is used in open networks or there are untrusted nodes in the network it is highly recommend to apply the patch. This was patched with commit 033ab5b. Users of version 1.4.x should upgrade to version 1.4.3 when available. As a workaround changes of commit 033ab5b can be applied to older versions.

The weakness was published 08/26/2020 (GitHub Repository). It is possible to read the advisory at This vulnerability is uniquely identified as CVE-2020-15158 since 06/25/2020. It is possible to initiate the attack remotely. The successful exploitation requires a authentication. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 1.4.3 eliminates this vulnerability.



CPE 2.3infoedit

CPE 2.2infoedit


VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.4
VulDB Temp Score: 6.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.7
NVD Vector: 🔒



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


Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒


Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍


Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: libIEC61850 1.4.3


06/25/2020 CVE assigned
08/26/2020 +62 days Advisory disclosed
08/27/2020 +1 days VulDB entry created
11/11/2020 +76 days VulDB last update


Status: Not defined
Confirmation: 🔒

CVE: CVE-2020-15158 (🔒)


Created: 08/27/2020 07:10 AM
Updated: 11/11/2020 04:43 PM
Changes: (1) source_cve_cna
Complete: 🔍


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