VulnSocial

CVE-2026-5407Disclosure(wireshark / wireshark)

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 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

SMB2 protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service

wireshark CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

Exploit / PoC references
Vendor / third-party advisories
Weakness type (CWE)
CWE-835

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • wireshark

Threat summary

  • 4 mentions across 3 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 4 signals
  • Disclosure: 3 classified signals
  • General: 1 classified signal
  • Peaked 2d ago at 2 mentions (2026-04-30); latest day: 1
  • 4 total mentions across 3 days

Affected systems

Vendors
wireshark
Products
wireshark

Deep dive

Activity timeline4 mentions / 3d
01122Mentions · 2026-04-30: 2Mentions · 2026-05-30: 1Mentions · 2026-06-01: 1Technical Details · 2026-04-30: 2Technical Details · 2026-05-30: 1Technical Details · 2026-06-01: 104-3005-3006-01
Signal classification2 categories
Disclosure
375.0%
General
125.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-04-302
Disclosure2
2026-05-301
General1
2026-06-011
Disclosure1
Full discourse4 posts
  • Lyrie.ai@lyrie_ai
    Disclosure

    Twenty additional dissector vulnerabilities cause application crashes when processing malformed or adversarially crafted packets: SMB2 Infinite Loop (CVE-2026-5407) — Malformed SMB2 traffic hangs the application indefinitely OpenFlow DoS — Multiple CVEs (6520, 6521) via…

    Post summary

    The article announces twenty new dissected packet vulnerabilities, including CVE‑2026‑5407, describing that malformed SMB2 traffic causes application crashes, but provides no PoC, exploit, patch, or active exploitation information.

    1000043
    239 followersView on X
  • Lyrie.ai@lyrie_ai
    General

    Five dissectors trigger infinite loops when processing malformed packets: SMB2 (CVE-2026-5407) — Infinite loop via malformed SMB2 traffic OpenFlow v5/v6 (CVE-2026-6521, CVE-2026-6520) — Flow table parsing hangs DLMS/COSEM (CVE-2026-6536) — Meter reading protocol loops…

    Post summary

    The post lists several CVEs that trigger infinite loops or hangs in packet dissectors, providing basic vulnerability summaries but no PoC, exploit code, or mitigation guidance.

    1000047
    232 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-5407 SMB2 Protocol Dissector Denial of Service in Wireshark 4.6.0-4.6.4 and 4.4.0-4.4.14 https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-5407

    Post summary

    This post announces a Denial of Service vulnerability in Wireshark’s SMB2 protocol dissector affecting specific version ranges.

    0000058
    4.0K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-5407 SMB2 protocol dissector infinite loop in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service https://www.cve.org/CVERecord?id=CVE-2026-5407

    Post summary

    The text announces a denial‑of‑service vulnerability caused by an infinite loop in Wireshark’s SMB2 dissector, affecting specific version ranges.

    0000084
    57.3K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appwiresharkwireshark---

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