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CVE-2026-19695— Stack-based Buffer Overflow in Wireshark

Quick assessment

Affected
Wireshark Foundation Wireshark
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Wireshark是Wireshark组织开源的一款网络协议分析工具。 Wireshark 4.6.0版本至4.6.7版本存在缓冲区错误漏洞，该漏洞源于Gammu DCT3跟踪文件解析器崩溃，可能导致拒绝服务攻击。

CVSS 4.7 · Medium EPSS 0.10% · P1

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
Wireshark Foundation Wireshark 4.6.0< 4.6.8 affected
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I. Basic Information for CVE-2026-19695

Vulnerability Information
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Vulnerability Title
Stack-based Buffer Overflow in Wireshark
Source: CVE Program / CVE List V5
Vulnerability Description
Gammu DCT3 trace file parser crash in 4.6.0 to 4.6.7 allows denial of service
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Wireshark 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wireshark是Wireshark组织开源的一款网络协议分析工具。 Wireshark 4.6.0版本至4.6.7版本存在缓冲区错误漏洞，该漏洞源于Gammu DCT3跟踪文件解析器崩溃，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Wireshark Foundation Wireshark 4.6.0 ~ 4.6.8 -

II. Public POCs for CVE-2026-19695

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III. Intelligence Information for CVE-2026-19695

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Vendor Advisories for CVE-2026-19695 (2)

Same Patch Batch · Wireshark Foundation · 2026-08-13 · 3 CVEs total

CVE-2026-19696 6.6 MEDIUM Out-of-bounds Write in Wireshark
CVE-2026-19694 4.7 MEDIUM Heap-based Buffer Overflow in Wireshark

IV. Related Vulnerabilities

Same product: Wireshark
Same vendor: Wireshark Foundation
Same weakness: CWE-121

V. Comments for CVE-2026-19695

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