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CVE-2025-34522— Arcserve UDP < 10.2 Pre-Authentication Heap Overflow

Quick assessment

Affected
Arcserve Unified Data Protection (UDP)
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.

Arcserve Unified Data Protection等都是(Arcserve)公司的产品。Arcserve Unified Data Protection是一体化数据和勒索软件保护解决方案。WebSockets ws等都是(WebSockets)开源的产品。ws是一个 Node.js WebSocket 库。roc req等都是(roc)个人开发者的产品。req是一个使用 Black Magic 的简单 Go HTTP 客户端。 Arcserve Unified Data Protection

AI Predicted 9.8 Difficulty: Easy EPSS 0.56% · P44

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
Arcserve Unified Data Protection (UDP) 10.2 unaffected
8.0≤ 10.1 affected
≤ 7.* affected
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I. Basic Information for CVE-2025-34522

Vulnerability Information
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Vulnerability Title
Arcserve UDP < 10.2 Pre-Authentication Heap Overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A heap-based buffer overflow vulnerability exists in the input parsing logic of Arcserve Unified Data Protection (UDP). This flaw can be triggered without authentication by sending specially crafted input to the target system. Improper bounds checking allows an attacker to overwrite heap memory, potentially leading to application crashes or remote code execution. Exploitation occurs in the context of the affected process and does not require user interaction. The vulnerability poses a high risk due to its pre-authentication nature and potential for full compromise. 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: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
多款产品安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Arcserve Unified Data Protection等都是(Arcserve)公司的产品。Arcserve Unified Data Protection是一体化数据和勒索软件保护解决方案。WebSockets ws等都是(WebSockets)开源的产品。ws是一个 Node.js WebSocket 库。roc req等都是(roc)个人开发者的产品。req是一个使用 Black Magic 的简单 Go HTTP 客户端。 Arcserve Unified Data Protection
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-2025-34522

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III. Intelligence Information for CVE-2025-34522

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Vendor Advisories for CVE-2025-34522 (1)

Same Patch Batch · Arcserve · 2025-08-27 · 4 CVEs total

CVE-2025-34523 9.2 CRITICAL Arcserve UDP < 10.2 Pre-Authentication Heap Overflow
CVE-2025-34520 Arcserve UDP < 10.2 Authentication Bypass
CVE-2025-34521 Arcserve UDP < 10.2 Reflected Cross-Site Scripting (XSS)

IV. Related Vulnerabilities

Same product: Unified Data Protection (UDP)
Same vendor: Arcserve
Same weakness: CWE-122

V. Comments for CVE-2025-34522

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