VulnSocial

CVE-2026-66369Disclosure

LOWCVSS 7.1 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

The GOOSE parser contains an off-by-one boundary-handling flaw that can be triggered by a single unauthenticated Layer-2 multicast frame on the process bus. When specific GOOSE message fields are processed, the parser advances its internal buffer position incorrectly, resulting in a heap out-of-bounds read. On affected platforms, this condition reliably terminates the subscriber process and causes a denial-of-service.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-125

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-31: 2Technical Details · 2026-07-31: 207-31
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-66369 The GOOSE parser contains an off-by-one boundary-handling flaw that can be triggered by a single unauthenticated Layer-2 multicast frame on the process bus. When sp… https://www.cve.org/CVERecord?id=CVE-2026-66369

    Post summary

    CVE‑2026‑66369 describes an off‑by‑one boundary‑handling flaw in the GOOSE parser that can be triggered by an unauthenticated Layer‑2 multicast frame, with no reference to a PoC, exploit tool, active exploitation, or mitigation.

    00010789
    57.9K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-66369 The GOOSE parser contains an off-by-one boundary-handling flaw that can be triggered by a single unauthenticated Layer-2 multicast frame on the process bus. When sp… https://www.cve.org/CVERecord?id=CVE-2026-66369 ----- Traducción: CVE-2026-66369 El … http://infoflow.cloud`

    Post summary

    The post announces CVE-2026-66369 as an off‑by‑one boundary flaw in a GOOSE parser, providing a brief technical description and a link to the CVE record, with no evidence of exploitation or mitigation.

    0000038
    96 followersView on X

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