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CVE-2026-110712— libsmb2 through 6.2 Heap Out-of-Bounds Read via smb2_decode_file_all_info

一分钟漏洞结论

影响对象
sahlberg libsmb2
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

libsmb2 through 6.2 contains a heap out-of-bounds read vulnerability in smb2_decode_file_all_info that allows malicious SMB servers to crash clients by sending an unchecked FileNameLength. Attackers controlling the server or performing man-in-the-middle on uns

CVSS 6.5 · Medium
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一、 漏洞 CVE-2026-110712 基础信息

漏洞信息

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Vulnerability Title
libsmb2 through 6.2 Heap Out-of-Bounds Read via smb2_decode_file_all_info
来源: CVE Program / CVE List V5
Vulnerability Description
libsmb2 through 6.2 contains a heap out-of-bounds read vulnerability in smb2_decode_file_all_info that allows malicious SMB servers to crash clients by sending an unchecked FileNameLength. Attackers controlling the server or performing man-in-the-middle on unsigned sessions can return crafted FileAllInformation replies to smb2_stat or smb2_fstat calls, crashing the client.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
sahlberg libsmb2 0 ~ 6.2 -

二、漏洞 CVE-2026-110712 的公开POC

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三、漏洞 CVE-2026-110712 的情报信息

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CVE-2026-110712 其他参考 (4)

同批安全公告 · sahlberg · 2026-10-14 · 共 3 条

CVE-2026-110714 6.5 MEDIUM libsmb2 through 6.2 Heap Out-of-Bounds Read via decode_acl Integer Underflow
CVE-2026-110713 6.5 MEDIUM libsmb2 through 6.2 Heap Out-of-Bounds Read via File System Info Decoders

IV. Related Vulnerabilities

Same product: libsmb2
Same vendor: sahlberg
Same weakness: CWE-125

V. Comments for CVE-2026-110712

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