PT-2026-53752 · Lib60870 · Lib60870

Gff-Cw · Published 2026-06-29 · Updated 2026-06-29 · CVE-2026-51219

Positive Technologies (AI Summary)

Name of the Vulnerable Software and Affected Versions lib60870 versions 2.3.3 through 2.3.6

Description A heap buffer overflow occurs in the HighPriorityASDUQueue hasUnconfirmedIMessages() function. This flaw allows an attacker to trigger a Denial of Service (DoS) by sending a specially crafted payload.

Recommendations As a temporary workaround, consider restricting the use of the HighPriorityASDUQueue hasUnconfirmedIMessages() function until a patch is available.

Related Identifiers

CVE-2026-51219

Affected Products

Lib60870

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-51219 · Security Note
• https://github.com/mz-automation/lib60870 · Note
• https://github.com/mz-automation/lib60870/issues/196 · Note
• https://github.com/mz-automation/lib60870/releases · Note
• https://twitter.com/VulmonFeeds/status/2071743398218735984 · Twitter Post