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Fencer Vulns
high 8.2

CVE-2024-34057 json

Triangle Microworks TMW IEC 61850 Client source code libraries before 12.2.0 lack a buffer size check when processing received messages.

published 2024-09-18 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-34611

cvss
8.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 38%
public exploits
0
none known

Summary

Triangle Microworks TMW IEC 61850 Client source code libraries before 12.2.0 lack a buffer size check when processing received messages. The resulting buffer overflow can cause a crash, resulting in a denial of service.

Patch / fix

  • trianglemicroworks iec_61850_client_source_code_library 12.2.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-24-256-16 updated cvss 8.2

Siemens Third-Party Component in SICAM and SITIPE Products

  • Siemens ET85 Ethernet Interface IEC61850 Ed.2 < 03.27
    affected: fixed in V03.27
  • Siemens ETI5 Ethernet Int. 1x100TX IEC61850 < 05.30
    affected: fixed in V05.30
  • Siemens SICAM SCC <V9.14_HF2
    affected: fixed in V9.14 support.industry.siemens.com
  • Siemens SITIPE AT < 3.21
    affected: fixed in V3.21 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Affected products

  • trianglemicroworks iec_61850_client_source_code_library

Classification

Weakness
  • CWE-120 Buffer Copy without Checking Size of Input

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.