CVE-2026-76917— Heap-based Buffer Overflow in Wireshark
Possible ATT&CK Techniques 1AI
T1499 · Endpoint Denial of ServiceAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Wireshark Foundation | Wireshark | 4.6.0< 4.6.8 | affected |
4.4.0< 4.4.18 | affected |
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I. Basic Information for CVE-2026-76917
Vulnerability Information
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Vulnerability Title
Heap-based Buffer Overflow in Wireshark
Source: CVE Program / CVE List V5
Vulnerability Description
Bluetooth AVRCP Profile protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 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组织开源的一款网络协议分析工具。 Wireshark 4.6.0版本至4.6.7版本和4.4.0版本至4.4.18版本存在缓冲区错误漏洞，该漏洞源于Bluetooth AVRCP Profile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 ~ 4.6.8 | - |
II. Public POCs for CVE-2026-76917
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-76917 (1)
Vendor Advisories for CVE-2026-76917 (1)
Same Patch Batch · Wireshark Foundation · 2026-08-19 · 25 CVEs total
| CVE-2026-76886 | 8.1 HIGH | Heap-based Buffer Overflow in Wireshark |
| CVE-2026-76928 | 7.5 HIGH | NULL Pointer Dereference in Wireshark |
| CVE-2026-76879 | 7.5 HIGH | Stack-based Buffer Overflow in Wireshark |
| CVE-2026-76880 | 7.5 HIGH | Out-of-bounds Write in Wireshark |
| CVE-2026-76924 | 5.5 MEDIUM | Out-of-bounds Read in Wireshark |
| CVE-2026-76922 | 5.5 MEDIUM | NULL Pointer Dereference in Wireshark |
| CVE-2026-76918 | 5.5 MEDIUM | Heap-based Buffer Overflow in Wireshark |
| CVE-2026-76923 | 5.5 MEDIUM | Out-of-bounds Read in Wireshark |
| CVE-2026-76921 | 5.5 MEDIUM | Use After Free in Wireshark |
| CVE-2026-76919 | 5.3 MEDIUM | Use of Uninitialized Variable in Wireshark |
| CVE-2026-76929 | 4.7 MEDIUM | Out-of-bounds Read in Wireshark |
| CVE-2026-76927 | 4.7 MEDIUM | NULL Pointer Dereference in Wireshark |
| CVE-2026-76920 | 4.7 MEDIUM | Out-of-bounds Write in Wireshark |
| CVE-2026-76882 | 4.7 MEDIUM | Out-of-bounds Read in Wireshark |
| CVE-2026-76883 | 4.7 MEDIUM | Heap-based Buffer Overflow in Wireshark |
| CVE-2026-76889 | 4.7 MEDIUM | Heap-based Buffer Overflow in Wireshark |
| CVE-2026-76881 | 4.7 MEDIUM | NULL Pointer Dereference in Wireshark |
| CVE-2026-76891 | 3.1 LOW | Expired Pointer Dereference in Wireshark |
| CVE-2026-76885 | 3.1 LOW | Buffer Over-read in Wireshark |
| CVE-2026-76884 | 3.1 LOW | Buffer Over-read in Wireshark |
Showing top 20 of 25 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same weakness: CWE-122
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Capstone SH disassembler `set_reg_n` heap buffer overflow vi - CVE-2026-70654
libvips: A well-crafted PPM image processed via a custom sou - CVE-2026-70653
libvips: Possible heap-based buffer read overflow when decod
V. Comments for CVE-2026-76917
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