CVE-2026-48689
Possible ATT&CK Techniques 3AI
T1059 · Command and Scripting Interpreter T1133 · External Remote Services T1190 · Exploit Public-Facing ApplicationGet alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-48689
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
FastNetMon Community Edition through 1.2.9 contains an off-by-one heap-based buffer overflow in the dynamic_binary_buffer_t class (src/dynamic_binary_buffer.hpp). Five methods (append_dynamic_buffer, append_data_as_pointer, append_data_as_object_ptr, memcpy_from_ptr, memcpy_from_object_ptr) use an incorrect bounds check of the form 'if (offset + length > maximum_internal_storage_size + 1)' instead of the correct 'if (offset + length > maximum_internal_storage_size)'. This allows writing exactly one byte past the end of the heap-allocated buffer. The class is used pervasively in BGP message encoding/decoding, NetFlow template processing, and Flow Spec NLRI construction. An attacker who can send network traffic (NetFlow, sFlow, IPFIX, or BGP) to a FastNetMon instance can trigger this overflow, potentially achieving arbitrary code execution by corrupting heap metadata. Notably, the append_byte() method uses the correct bounds check, confirming the inconsistency.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
II. Public POCs for CVE-2026-48689
| # | POC Description | Source Link | Shenlong Link |
|---|
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Security Blog Posts for CVE-2026-48689 (1)
Other References for CVE-2026-48689 (2)
Same Patch Batch · n/a · 2026-05-26 · 31 CVEs total
| CVE-2026-9496 | 7.5 HIGH | pacote 11.2.7 DoS漏洞 |
| CVE-2026-9580 | 7.3 HIGH | JeecgBoot selectDepart LoginController.selectDepart access control |
| CVE-2026-9495 | 7.3 HIGH | @koa/router 14.0.0-15.0.0 访问控制绕过 |
| CVE-2026-9581 | 6.3 MEDIUM | JeecgBoot add access control |
| CVE-2026-9579 | 6.3 MEDIUM | JeecgBoot SysUser userEdit user.getUsername access control |
| CVE-2026-9541 | 5.3 MEDIUM | Squirrel Cnut File sqobject.cpp ReadObject heap-based overflow |
| CVE-2026-9568 | 5.0 MEDIUM | ThingsBoard YAML provision getGatewayDockerComposeFile code injection |
| CVE-2026-9604 | 4.3 MEDIUM | JeecgBoot AiragModelController access control |
| CVE-2026-9567 | 3.3 LOW | GPAC MP4Box isom_intern.c MergeFragment null pointer dereference |
| CVE-2026-9572 | 3.3 LOW | GPAC MP4Box media.c Media_GetSample memory leak |
| CVE-2025-68711 | AppLockZ 4.2.11 绕过PIN锁致信息泄露 | |
| CVE-2025-68708 | SailingLab AppLock 4.3.8应用绕过漏洞 | |
| CVE-2026-36239 | PbootCMS v3.2.11 站点配置代码注入漏洞 | |
| CVE-2025-68710 | Easyelife App lock 1.9.2 覆盖绕过导致信息泄露 | |
| CVE-2025-68709 | Android AppLock 4.3.8 远程代码执行漏洞 | |
| CVE-2026-48694 | FastNetMon Community Edition配置注入致路由器沦陷 | |
| CVE-2026-48695 | FastNetMon ≤1.2.9 MikroTik插件命令注入漏洞 | |
| CVE-2026-48696 | FastNetMon 1.2.9及之前版本存在缓冲区溢出漏洞 | |
| CVE-2026-48697 | FastNetMon <1.2.9 TLS证书验证缺失漏洞 | |
| CVE-2026-48690 | FastNetMon整数溢出致堆损坏 |
Showing top 20 of 31 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-48689
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