CVE-2026-86377 — HIGH (7.6)

Vulnerability Description

Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, 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 an Out-of-bounds Write vulnerability. A low privileged attacker with remote access could potentially exploit this vulnerability, leading to Denial of service.

CVSS Score

7.6

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

HIGH

Related Weaknesses (CWE)

CWE-787

References

https://www.dell.com/support/kbdoc/en-us/000515178/dsa-2026-416-security-update-

FAQ

What is CVE-2026-86377?

CVE-2026-86377 is a vulnerability with a CVSS score of 7.6 (HIGH). Dell PowerProtect Data Domain, Feature Release versions 7.7.1.0 through 8.8, 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 ver...

How severe is CVE-2026-86377?

CVE-2026-86377 has been rated HIGH with a CVSS base score of 7.6/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-86377?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.