How severe is CVE-2026-28263?

CVE-2026-28263 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-28263 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28263?

CVE-2026-28263 primarily affects Dell Powerprotect Data Domain. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-28263?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-28263 have an EU (EUVD) identifier?

Yes. CVE-2026-28263 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23413.

When was CVE-2026-28263 published?

CVE-2026-28263 was published on 2026-04-17 and last updated on 2026-06-17.

CVE-2026-28263

CVE-2026-28263 is a medium-severity vulnerability in Dell Powerprotect Data Domain with a CVSS 3.x base score of 5.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.9)
EPSS exploit prediction: 0% (10th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-23413
Weakness: CWE-79
Affected product: Dell Powerprotect Data Domain
Published: 2026-04-17
Last modified: 2026-06-17

Description

Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.5, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.50, contain a cross-site Scripting vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Script injection.

Frequently asked questions

What is CVE-2026-28263?: Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.5, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024 release versions 7.13.1.0 through 7.13.1.50, contain a cross-site Scripting vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Script injection.
How severe is CVE-2026-28263?: CVE-2026-28263 has a CVSS 3.x base score of 5.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-28263 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (10th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28263?: CVE-2026-28263 primarily affects Dell Powerprotect Data Domain. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-28263?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-28263 have an EU (EUVD) identifier?: Yes. CVE-2026-28263 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23413.
When was CVE-2026-28263 published?: CVE-2026-28263 was published on 2026-04-17 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/en-us/000450699/dsa-2026-060-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities

Affected products (2)

cpe:2.3:a:dell:powerprotect_data_domain:*:*:*:*:lts:*:*:*
cpe:2.3:o:dell:data_domain_operating_system:*:*:*:*:*:*:*:*

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