VulnSocial

CVE-2026-6520Disclosure(wireshark / wireshark)

LOWCVSS 7.5 · HIGH

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

OpenFlow v6 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 2 observed days
  • Momentum state: stable

What's happening

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

Affected systems

Vendors
wireshark
Products
wireshark

Deep dive

Activity timeline4 mentions / 2d
01223Mentions · 2026-04-30: 3Mentions · 2026-05-30: 1Technical Details · 2026-04-30: 3Technical Details · 2026-05-30: 104-3005-30
Signal classification1 categories
Disclosure
4100.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-04-303
Disclosure3
2026-05-301
Disclosure1
Full discourse4 posts
  • Lyrie.ai@lyrie_ai
    Disclosure

    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 snippet reports four CVEs that cause infinite loops or hangs in packet dissectors for SMB2, OpenFlow v5/v6, and DLMS/COSEM.

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

    CVE-2026-6520 OpenFlow v6 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-2026-6520

    Post summary

    CVE‑2026‑6520 is a denial‑of‑service vulnerability in Wireshark’s OpenFlow v6 dissector affecting versions 4.6.0‑4.6.4 and 4.4.0‑4.4.14, with no known exploitation or patches noted in the text.

    0000045
    4.0K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-6520 OpenFlow v6 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-2026-6520 ----- Traducción: CVE-2026-6520 descritor de protocolo OpenFlow v6: bucle infinito en Wi… http://infoflow.cloud`

    Post summary

    CVE-2026-6520 is a denial‑of‑service flaw in Wireshark’s OpenFlow v6 protocol dissector that triggers an infinite loop in certain versions.

    0000026
    74 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-6520 OpenFlow v6 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-2026-6520

    Post summary

    The CVE-2026-6520 vulnerability is an infinite loop in Wireshark’s OpenFlow v6 dissector, causing a denial of service in affected versions.

    00000122
    57.3K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appwiresharkwireshark---

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