MZ Automation lib60870 up to 2.4.0 TestCommand_getFromBuffer heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k1.83

Summaryinfo

A vulnerability, which was classified as critical, was found in MZ Automation lib60870 up to 2.4.0. The impacted element is the function TestCommand_getFromBuffer. Such manipulation leads to heap-based overflow. This vulnerability is traded as CVE-2026-61893. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in MZ Automation lib60870 up to 2.4.0. It has been rated as critical. Affected by this issue is the function TestCommand_getFromBuffer. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. CVE summarizes:

A crafted IEC 60870-5-104 I-frame with TypeID 104 (C_TS_NA_1) and an inflated object count causes TestCommand_getFromBuffer to read one byte past the end of the heap-allocated message buffer.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-61893 since 07/17/2026. The exploitation is known to be easy. The attack may be launched remotely. Technical details are known, but there is no available exploit.

Upgrading to version 2.4.1 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: lib60870 2.4.1

Timelineinfo

07/17/2026 CVE reserved
07/30/2026 +13 days VulDB entry created
07/31/2026 +0 days Advisory disclosed
07/31/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2026-61893 (🔒)
GCVE (CVE): GCVE-0-2026-61893
GCVE (VulDB): GCVE-100-384974

Entryinfo

Created: 07/31/2026 01:28
Changes: 07/31/2026 01:28 (56)
Complete: 🔍
Cache ID: 216::103

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