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CVE-2025-67901

Quick assessment

Affected
kristapsdz openrsync
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.

openrsync是Kristaps Dz个人开发者的一个文件同步库。 openrsync 0.5.0及之前版本存在安全漏洞，该漏洞源于客户端可指定零长度块数据导致服务器SIGSEGV。

CVSS 5.3 · Medium EPSS 0.28% · P20

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-67901

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
openrsync through 0.5.0, as used in OpenBSD through 7.8 and on other platforms, allows a client to cause a server SIGSEGV by specifying a length of zero for block data, because the relationship between p->rem and p->len is not checked.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1284
Source: CVE Program / CVE List V5
Vulnerability Title
openrsync 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
openrsync是Kristaps Dz个人开发者的一个文件同步库。 openrsync 0.5.0及之前版本存在安全漏洞，该漏洞源于客户端可指定零长度块数据导致服务器SIGSEGV。
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
kristapsdz openrsync 0 ~ 0.5.0 -

II. Public POCs for CVE-2025-67901

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III. Intelligence Information for CVE-2025-67901

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Other References for CVE-2025-67901 (2)

IV. Related Vulnerabilities

Same weakness: CWE-1284