Critical severity · published Jul 7, 2026
CVE-2026-53483
Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release…
9.8
CVSS
0.6%
EPSS
No
On KEV
Description
Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10, LTS2025 release version 8.3.1.0 through 8.3.1.30, LTS2024 release versions 7.13.1.0 through 7.13.1.70 an improper authentication vulnerability. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to unauthorized access. This is a critical severity vulnerability as it allows an attacker to take complete control of system; so Dell recommends customers to upgrade at the earliest opportunity.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PD
PowerProtect Data Domain · Dell
before 8.8.0.0 or later; before 8.6.1.20 or later; before 8.3.1.40 or later; before 7.13.1.80 or later · source: vendor
DD
Data Domain Operating System · Dell
7.7.1.0 before 7.13.1.80; 7.14.0.0 before 8.3.1.40; 8.4.0.0 before 8.6.1.20; 8.7.0.0 before 8.8.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53483
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-53483
Vendor Advisory
https://www.dell.com/support/kbdoc/en-us/000481268/dsa-2026-278-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities
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