CVE-2025-66624— BACnet-stack MS/TP reply matcher OOB read
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2025-66624
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
BACnet-stack MS/TP reply matcher OOB read
Source: NVD (National Vulnerability Database)
Vulnerability Description
BACnet Protocol Stack library provides a BACnet application layer, network layer and media access (MAC) layer communications services. Prior to 1.5.0.rc2, The npdu_is_expected_reply function in src/bacnet/npdu.c indexes request_pdu[offset+2/3/5] and reply_pdu[offset+1/2/4] without verifying that those APDU bytes exist. bacnet_npdu_decode() can return offset == 2 for a 2-byte NPDU, so tiny PDUs pass the version check and then get read out of bounds. On ASan/MPU/strict builds this is an immediate crash (DoS). On unprotected builds it is undefined behavior and can mis-route replies; RCE is unlikely because only reads occur, but DoS is reliable.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
BACnet Stack 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BACnet Stack是BACnet Stack开源的一个适用于嵌入式系统、Linux、MacOS、BSD 和 Windows 的 BACnet 开源协议栈 C 库。 BACnet Stack 1.5.0.rc2之前版本存在缓冲区错误漏洞，该漏洞源于npdu_is_expected_reply函数未验证APDU字节存在，可能导致越界读取和拒绝服务。
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 |
|---|---|---|---|---|
| bacnet-stack | bacnet-stack | < 1.5.0.rc2 | - |
II. Public POCs for CVE-2025-66624
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2025-66624
请登录查看更多情报信息。
IV. Related Vulnerabilities
Same product: bacnet-stack
- CVE-2026-41503
BACnet Stack: Out-of-Bounds Read in ReadPropertyMultiple Pro - CVE-2026-41502
BACnet Stack: Off-by-One Out-of-Bounds Read in ReadPropertyM - CVE-2026-41475
BACnet Stack: Out-of-Bounds Read in WritePropertyMultiple De - CVE-2026-40279
BACnet Stack: Undefined-behavior signed left shift in `decod - CVE-2026-26264
BACnet Stack WriteProperty decoding length underflow leads t
Same vendor: bacnet-stack
- CVE-2026-41503
BACnet Stack: Out-of-Bounds Read in ReadPropertyMultiple Pro - CVE-2026-41502
BACnet Stack: Off-by-One Out-of-Bounds Read in ReadPropertyM - CVE-2026-41475
BACnet Stack: Out-of-Bounds Read in WritePropertyMultiple De - CVE-2026-40279
BACnet Stack: Undefined-behavior signed left shift in `decod - CVE-2026-26264
BACnet Stack WriteProperty decoding length underflow leads t
Same weakness: CWE-125
- CVE-2026-8177
XML::LibXML versions through 2.0210 for Perl read out-of-bou - CVE-2026-6104
Global buffer over-read in mb_convert_encoding() with attack - CVE-2026-7258
Out-of-bounds read in urldecode() on NetBSD - CVE-2026-8186
Open5GS NF client.c ogs_sbi_client_send_via_scp_or_sepp out- - CVE-2026-3508
ASUS System Control Interface 缓冲区错误漏洞
V. Comments for CVE-2025-66624
No comments yet