CVE-2024-0208Public exploitNetwork attack vector

Application crash via null ReadReg address string

Published Jan 3, 2024 · Updated Mar 27, 2026

Denial of service in the GVCP dissector in Wireshark 4.2.0, 4.0.0 through 4.0.11, and 3.6.0 through 3.6.19 allows attackers to crash it. In dissect_readreg_ack, an empty ReadReg acknowledgement leaves address_string null before col_append_str passes it to strlen, causing a null-pointer read. Network injection requires packet delivery to an analyzing instance; the file path requires a user to open the crafted trace, and only that process is interrupted.

CVSS severity7.8
High
EPSS probability1.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Denial of service in the GVCP dissector in Wireshark 4.2.0, 4.0.0 through 4.0.11, and 3.6.0 through 3.6.19 allows attackers to crash it. In dissect_readreg_ack, an empty ReadReg acknowledgement leaves address_string null before col_append_str passes it to strlen, causing a null-pointer read. Network injection requires packet delivery to an analyzing instance; the file path requires a user to open the crafted trace, and only that process is interrupted.

The record

CVE
CVE-2024-0208
Published
Jan 3, 2024
Updated
Mar 27, 2026
Vendor
Wireshark Foundation
Product
Wireshark
Classifications
CWE-230, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 3, 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=3.6.0 <3.6.20
  2. Affected versionversion=4.0.0 <4.0.12
  3. Affected versionversion=4.2.0 <4.2.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Wireshark Foundation · Wiresharkversion=3.6.0 <3.6.20; version=4.0.0 <4.0.12; version=4.2.0 <4.2.1

Published CVSS scores

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

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

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo