CVE-2026-95392Public exploitHinoki check available

Packet-analysis crash via MBIM character-count wrap

Published Sep 29, 2026 · Updated Sep 29, 2026

MBIM dissector denial of service in Wireshark 4.4.0 through 4.4.18 and 4.6.0 through 4.6.8 allows attackers to crash packet analysis. The MBIM SMS decoder accepts an inconsistent encoded-byte count and character count; a 32-bit packed-length calculation wraps before bounds checking, while decoding retains the untrusted character count. A crafted capture file triggers the demonstrated crash when detailed packet-tree analysis is requested; the vendor also identifies malformed live packets as a possible route.

CVSS severityUnavailable
Unscored
EPSS probability0.15%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Get started

Summary

What happened

MBIM dissector denial of service in Wireshark 4.4.0 through 4.4.18 and 4.6.0 through 4.6.8 allows attackers to crash packet analysis. The MBIM SMS decoder accepts an inconsistent encoded-byte count and character count; a 32-bit packed-length calculation wraps before bounds checking, while decoding retains the untrusted character count. A crafted capture file triggers the demonstrated crash when detailed packet-tree analysis is requested; the vendor also identifies malformed live packets as a possible route.

The record

CVE
CVE-2026-95392
Published
Sep 29, 2026
Updated
Sep 29, 2026
Vendor
Wireshark Foundation
Product
Wireshark
Classifications
T1499
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 29, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.4.0 <4.4.19
  2. Affected versionversion=4.6.0 <4.6.9

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Wireshark Foundation · Wiresharkversion=4.4.0 <4.4.19; version=4.6.0 <4.6.9

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Get started to see how Hinoki identifies affected software and validates exploitability in your environment.

Get started