Medium severity · published Jul 3, 2026
CVE-2026-26355
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…
6.5
CVSS
1.8%
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 contain an improper neutralization of special Elements used in an OS command ('OS command Injection') vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to command execution.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% 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; 8.3.1.0 before 8.3.1.40; 8.6.1.0 before 8.6.1.20 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26355
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-26355
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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