Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-15170— Heap-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组织开源的一套网络数据包分析软件。该软件的功能是截取网络数据包,并显示出详细的数据以供分析。 Wireshark 4.6.0版本至4.6.6版本和4.4.0版本至4.4.16版本存在缓冲区错误漏洞，该漏洞源于Z39.50协议解析器崩溃，可能导致拒绝服务。

CVSS 5.5 · Medium EPSS 0.16% · P5

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 2

VendorProduct Version RangeStatus
Wireshark Foundation Wireshark 4.6.0< 4.6.7 affected
4.4.0< 4.4.17 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-15170

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Heap-based Buffer Overflow in Wireshark
Source: CVE Program / CVE List V5
Vulnerability Description
Z39.50 protocol dissector crash in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allows denial of service
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
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组织开源的一套网络数据包分析软件。该软件的功能是截取网络数据包,并显示出详细的数据以供分析。 Wireshark 4.6.0版本至4.6.6版本和4.4.0版本至4.4.16版本存在缓冲区错误漏洞，该漏洞源于Z39.50协议解析器崩溃，可能导致拒绝服务。
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 ~ 4.6.7 -

II. Public POCs for CVE-2026-15170

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-15170

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-15170 (2)

Same Patch Batch · Wireshark Foundation · 2026-07-08 · 12 CVEs total

CVE-2026-15167 7.5 HIGH Stack-based Buffer Overflow in Wireshark
CVE-2026-15172 5.5 MEDIUM Unchecked Input for Loop Condition in Wireshark
CVE-2026-15166 5.5 MEDIUM Stack-based Buffer Overflow in Wireshark
CVE-2026-15174 5.5 MEDIUM Heap-based Buffer Overflow in Wireshark
CVE-2026-15163 5.5 MEDIUM Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark
CVE-2026-15164 5.5 MEDIUM Heap-based Buffer Overflow in ciscodump
CVE-2026-15169 5.5 MEDIUM Heap-based Buffer Overflow in Wireshark
CVE-2026-15171 5.5 MEDIUM NULL Pointer Dereference in Wireshark
CVE-2026-15165 5.5 MEDIUM Heap-based Buffer Overflow in Wireshark
CVE-2026-15173 4.7 MEDIUM Heap-based Buffer Overflow in Wireshark
CVE-2026-15168 2.5 LOW Use of Uninitialized Variable in Wireshark

IV. Related Vulnerabilities

Same product: Wireshark
Same vendor: Wireshark Foundation
Same weakness: CWE-122

V. Comments for CVE-2026-15170

No comments yet

Leave a comment