CVE-2026-90731

Quick assessment

Affected

Dell PowerProtect Data Domain

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.

Dell PowerProtect Data Domain 的以下版本存在基于栈的缓冲区溢出漏洞：功能发布版（Feature Release）：7.7.1.0 至 8.7 长期支持版（LTS2024）：7.13.1.0 至 7.13.1.80 长期支持版（LTS2025）：8.3.1.0 至 8.3.1.40 长期支持版（LTS2026）：8.6.1.0 至 8.6.1.20 拥有远程访问权限的高权限攻击者可能利用此漏洞，导致拒绝服务（Denial of Service）。

CVSS 4.9 · Medium Updated Oct 27, 2026

Possible ATT&CK Techniques 2 AI

T1499 · Endpoint Denial of Service T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

N/A

Source: CVE Program / CVE List V5

Vulnerability Description

Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.7, LTS2024 release versions 7.13.1.0 through 7.13.1.80, LTS2025 release versions 8.3.1.0 through 8.3.1.40, LTS2026 release versions 8.6.1.0 through 8.6.1.20, contain a Stack-based Buffer Overflow vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Denial of service.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

栈缓冲区溢出

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Dell	PowerProtect Data Domain	0 ~ 8.9.0.0 or later	-

II. Public POCs for CVE-2026-90731

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-90731

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Other References for CVE-2026-90731 (1)

https://www.dell.com/support/kbdoc/en-us/000515178/dsa-2026-416-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities vendor-advisory

https://www.cve.org/CVERecord?id=CVE-2026-90731

Same Patch Batch · Dell · 2026-10-27 · 6 CVEs total

CVE-2026-90729	6.7 MEDIUM	Dell PowerProtect 多版本存在权限管理漏洞
CVE-2026-90730	6.5 MEDIUM	Dell PowerProtect Data Domain 多版本不当访问控制漏洞
CVE-2026-90728	6.3 MEDIUM	Dell PowerProtect Data Domain 多版本权限提升漏洞
CVE-2026-56084	5.8 MEDIUM	Dell PowerProtect Data Domain 多版本 SSRF 漏洞
CVE-2026-90732	4.9 MEDIUM	Dell PowerProtect Data Domain 堆栈缓冲区溢出漏洞

IV. Related Vulnerabilities

Same product: PowerProtect Data Domain

Same vendor: Dell

Same weakness: CWE-121