VulnSocial

CVE-2026-66364Disclosure

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 payload parser contains a boundary handling flaw that can be triggered by a single unauthenticated Layer 2 multicast frame on the process bus. When processing specific payload fields, an attacker controlled inner element length may exceed its enclosing length, causing the parser to over read by one byte. This out-of-bounds read reliably terminates the subscriber process, resulting in a denial-of-service condition.

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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-2026-66364 The GOOSE payload parser contains a boundary handling flaw that can be triggered by a single unauthenticated Layer 2 multicast frame on the process bus. When proces… https://www.cve.org/CVERecord?id=CVE-2026-66364

    Post summary

    CVE‑2026‑66364 is disclosed as a boundary handling flaw in the GOOSE payload parser, triggerable by an unauthenticated Layer 2 multicast frame on the process bus, with no evidence of exploitation, PoC, patch, or false‑positive claim.

    000101.3K
    57.9K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-66364 The GOOSE payload parser contains a boundary handling flaw that can be triggered by a single unauthenticated Layer 2 multicast frame on the process bus. When proces… https://www.cve.org/CVERecord?id=CVE-2026-66364 ----- Traducción: CVE-2026-66364 El … http://infoflow.cloud`

    Post summary

    The post announces CVE-2026-66364 as a boundary handling flaw in the GOOSE payload parser, triggered by an unauthenticated L2 multicast frame, but provides no proof‑of‑concept, exploit, or patch information.

    0000035
    96 followersView on X

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