How severe is CVE-2025-43909?

CVE-2025-43909 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-43909 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-43909?

CVE-2025-43909 affects Dell Data Domain Operating System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-43909?

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

Does CVE-2025-43909 have an EU (EUVD) identifier?

Yes. CVE-2025-43909 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31908.

When was CVE-2025-43909 published?

CVE-2025-43909 was published on 2025-10-07 and last updated on 2026-06-17.

CVE-2025-43909

CVE-2025-43909 is a low-severity vulnerability in Dell Data Domain Operating System with a CVSS 3.x base score of 3.7. 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-327.

Key facts

Severity: Low (CVSS 3.x base score 3.7)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-31908
Weakness: CWE-327
Affected product: Dell Data Domain Operating System
Published: 2025-10-07
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 8.3.0.15, LTS2025 release version 8.3.1.0, LTS2024 release versions 7.13.1.0 through 7.13.1.30, LTS 2023 release versions 7.10.1.0 through 7.10.1.60, contain an Use of a Broken or Risky Cryptographic Algorithm vulnerability in the DD boost. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Information exposure.

Frequently asked questions

What is CVE-2025-43909?: Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.3.0.15, LTS2025 release version 8.3.1.0, LTS2024 release versions 7.13.1.0 through 7.13.1.30, LTS 2023 release versions 7.10.1.0 through 7.10.1.60, contain an Use of a Broken or Risky Cryptographic Algorithm vulnerability in the DD boost. An unauthenticated attacker with remote access could potentially exploit this vulnerability, leading to Information exposure.
How severe is CVE-2025-43909?: CVE-2025-43909 has a CVSS 3.x base score of 3.7, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-43909 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-43909?: CVE-2025-43909 affects Dell Data Domain Operating System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-43909?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-43909 have an EU (EUVD) identifier?: Yes. CVE-2025-43909 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-31908.
When was CVE-2025-43909 published?: CVE-2025-43909 was published on 2025-10-07 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/en-us/000376224/dsa-2025-333-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities

Affected products (1)

cpe:2.3:o:dell:data_domain_operating_system:*:*:*:*:*:*:*:*

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