CVE-2025-34523— Arcserve UDP < 10.2 Pre-Authentication Heap Overflow
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I. Basic Information for CVE-2025-34523
Vulnerability Information
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Vulnerability Title
Arcserve UDP < 10.2 Pre-Authentication Heap Overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
A heap-based buffer overflow vulnerability exists in the exists in the network-facing input handling routines of Arcserve Unified Data Protection (UDP). This flaw is reachable without authentication and results from improper bounds checking when processing attacker-controlled input. By sending specially crafted data, a remote attacker can corrupt heap memory, potentially causing a denial of service or enabling arbitrary code execution depending on the memory layout and exploitation techniques used. This vulnerability is similar in nature to CVE-2025-34522 but affects a separate code path or component. No user interaction is required, and exploitation occurs in the context of the vulnerable process. This vulnerability affects all UDP versions prior to 10.2. UDP 10.2 includes the necessary patches and requires no action. Versions 8.0 through 10.1 are supported and require either patch application or upgrade to 10.2. Versions 7.x and earlier are unsupported or out of maintenance and must be upgraded to 10.2 to remediate the issue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Arcserve Unified Data Protection 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Arcserve Unified Data Protection是Arcserve公司的一体化数据和勒索软件保护解决方案。 Arcserve Unified Data Protection 10.2之前版本存在安全漏洞，该漏洞源于网络输入处理存在堆缓冲区溢出，可能导致拒绝服务或远程代码执行。
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 |
|---|---|---|---|---|
| Arcserve | Unified Data Protection (UDP) | 8.0 ~ 10.1 | - |
II. Public POCs for CVE-2025-34523
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Arcserve · 2025-08-27 · 4 CVEs total
| CVE-2025-34520 | Arcserve UDP < 10.2 Authentication Bypass | |
| CVE-2025-34521 | Arcserve UDP < 10.2 Reflected Cross-Site Scripting (XSS) | |
| CVE-2025-34522 | Arcserve UDP < 10.2 Pre-Authentication Heap Overflow |
IV. Related Vulnerabilities
Same vendor: Arcserve
Same weakness: CWE-122
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V. Comments for CVE-2025-34523
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