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2770 articles · 175021 vulns · 36/41 feeds (7d)
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CVE-2026-51539EXPLOITED

CVE-2026-51539: A Denial of Service (DoS) vulnerability exists in the receive loop of libmodbus 3.1.12 when running on Windows. The issu

Description

A Denial of Service (DoS) vulnerability exists in the receive loop of libmodbus 3.1.12 when running on Windows. The issue stems from improper timeout management during network read operations.

Affected Products

VendorProductVersions
—n/an/a, 3.1.12

References

  • https://github.com/stephane/libmodbus/issues/843
  • https://gist.github.com/MrAlaskan/f22dcf01a5dd90da1b191fcee9043a32

Related News (1 articles)

Tier C
VulDB3h ago
CVE-2026-51539 | libmodbus 3.1.12 Receive Loop denial of service
→ No new info (linked only)
CISA KEV❌ No
Actively exploited✅ Yes
PublishedJul 13, 2026
Last enriched3h agov2
Tags
DoS
Trending Score46
Source articles1
Independent1
Info Completeness6/14
Missing: cvss, epss, cwe, kev, exploit, patch, iocs, mitre_attack

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Jul 13, 2026
Actively Exploited
Jul 13, 2026
Discovered by ZDM
Jul 13, 2026
Updated: affectedVersions, severity, activelyExploited, tags
Jul 13, 2026

Version History

v2
Last enriched 3h ago
v2Tier C3h ago

Updated vendor and product to libmodbus, changed severity to HIGH, and marked the vulnerability as actively exploited.

affectedVersionsseverityactivelyExploitedtags
via VulDB
v13h ago

Initial creation