CVE-2024-9781Public exploitNetwork attack vector

Analyzer crash via missing dissector addresses

Published Oct 10, 2024 · Updated Mar 27, 2026

Denial of service in Wireshark 4.2.0 through 4.2.7 and 4.4.0 allows attackers to crash the analyzer via a malformed packet or capture file. The Exported PDU dissector can call dissect_atp without valid source and destination addresses, leading memcpy to read a null address; public details do not isolate the RELOAD Framing fault. A live attack requires injection onto a monitored link, while the file path requires a user to open an attacker-supplied trace; the reported outcome is a process crash.

CVSS severity7.5
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Wireshark 4.2.0 through 4.2.7 and 4.4.0 allows attackers to crash the analyzer via a malformed packet or capture file. The Exported PDU dissector can call dissect_atp without valid source and destination addresses, leading memcpy to read a null address; public details do not isolate the RELOAD Framing fault. A live attack requires injection onto a monitored link, while the file path requires a user to open an attacker-supplied trace; the reported outcome is a process crash.

The record

CVE
CVE-2024-9781
Published
Oct 10, 2024
Updated
Mar 27, 2026
Vendor
Wireshark Foundation
Product
Wireshark
Classifications
CWE-230, T1499, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 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=4.2.0 <4.2.8
  2. Affected versionversion=4.4.0 <4.4.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Wireshark Foundation · Wiresharkversion=4.2.0 <4.2.8; version=4.4.0 <4.4.1

Published CVSS scores

7.8GitLab Inc.CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

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

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-230Improper Handling of Missing Values
T1499Endpoint Denial of Service
T1204.002Malicious File

Public exploit references

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

Technologies

Your stack

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Your stack

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