--- title: "CVE-2026-86377: Dell PowerProtect Data Domain - Denial of Service" description: "Dell PowerProtect Data Domain 7.7.1.0 through 8.8, LTS2024 7.13.1.0 through 7.13.1.80, LTS2025 8.3.1.0 through 8.3.1.40, and LTS2026 8.6.1.0 through 8.6.1.20 contain an out-of-bounds write vulnerability, letting low privileged remote attackers cause denial of service, exploit requires remote access." url: https://panop.io/threat-heartbeat/CVE-2026-86377/ --- # CVE-2026-86377 Dell PowerProtect Data Domain - Denial of Service Dell PowerProtect Data Domain 7.7.1.0 through 8.8, LTS2024 7.13.1.0 through 7.13.1.80, LTS2025 8.3.1.0 through 8.3.1.40, and LTS2026 8.6.1.0 through 8.6.1.20 contain an out-of-bounds write vulnerability, letting low privileged remote attackers cause denial of service, exploit requires remote access. CVSS base score 7.6 /10 High CISA KEV Not listed Public exploit None known Authentication Required [View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-86377) ## Details Type Denial of Service Impact Denial Of Service CVSS vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H Published 28 October 2026 Updated 29 October 2026 Weakness [CWE-787](https://cwe.mitre.org/data/definitions/787.html) ## Vendor fix Update to the latest available version beyond 8.8 or respective LTS versions. Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them. ## References - [https://nvd.nist.gov/vuln/detail/CVE-2026-86377](https://nvd.nist.gov/vuln/detail/CVE-2026-86377) - [https://www.dell.com/support/kbdoc/en-us/000515178/dsa-2026-416-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities](https://www.dell.com/support/kbdoc/en-us/000515178/dsa-2026-416-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities) [← All CVEs](https://panop.io/threat-heartbeat/) ## What this record can't tell you - Whether you run the affected software, and where - Whether an attacker can actually reach and exploit it - The misconfigurations that never get a CVE number - What it would cost the business, ranked into what to fix first Panop answers these inside your environment, for this CVE and every other finding. [Book a demo](https://panop.io/demo)