How severe is CVE-2025-46643?

CVE-2025-46643 has a CVSS 3.x base score of 2.3, rated low severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-46643 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-46643?

CVE-2025-46643 primarily affects Dell Data Domain Operating System. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-46643?

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

Does CVE-2025-46643 have an EU (EUVD) identifier?

Yes. CVE-2025-46643 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1732.

When was CVE-2025-46643 published?

CVE-2025-46643 was published on 2026-01-09 and last updated on 2026-06-17.

CVE-2025-46643

CVE-2025-46643 is a low-severity vulnerability in Dell Data Domain Operating System with a CVSS 3.x base score of 2.3. 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-787.

Key facts

Severity: Low (CVSS 3.x base score 2.3)
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-1732
Weakness: CWE-787
Affected product: Dell Data Domain Operating System
Published: 2026-01-09
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 8.4.0.0, LTS2025 release version 8.3.1.10, LTS2024 release versions 7.13.1.0 through 7.13.1.40, LTS 2023 release versions 7.10.1.0 through 7.10.1.70, contain a Heap-based Buffer Overflow vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Denial of service.

Frequently asked questions

What is CVE-2025-46643?: Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through 8.4.0.0, LTS2025 release version 8.3.1.10, LTS2024 release versions 7.13.1.0 through 7.13.1.40, LTS 2023 release versions 7.10.1.0 through 7.10.1.70, contain a Heap-based Buffer Overflow vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to Denial of service.
How severe is CVE-2025-46643?: CVE-2025-46643 has a CVSS 3.x base score of 2.3, rated low severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-46643 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-46643?: CVE-2025-46643 primarily affects Dell Data Domain Operating System. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-46643?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-46643 have an EU (EUVD) identifier?: Yes. CVE-2025-46643 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1732.
When was CVE-2025-46643 published?: CVE-2025-46643 was published on 2026-01-09 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/en-us/000405813/dsa-2025-415-security-update-for-dell-powerprotect-data-domain-multiple-vulnerabilities

Affected products (2)

cpe:2.3:o:dell:data_domain_operating_system:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:data_domain_operating_system:8.4.0.0:*:*:*:*:*:*:*

More vulnerabilities in Dell Data Domain Operating System

CVE-2025-36594 — Critical (CVSS 9.8): Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through…
CVE-2026-26944 — High (CVSS 8.8): Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.6, LTS2025 release version 8.3.1.0 through 8.3.1.20, LTS2024…
CVE-2025-29987 — High (CVSS 8.8): Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) versions prior to 8.3.0.15 contain an…
CVE-2024-37140 — High (CVSS 8.8): Dell PowerProtect DD, versions prior to 8.0, LTS 7.13.1.0, LTS 7.10.1.30, LTS 7.7.5.40 contain an OS command injection…
CVE-2024-29176 — High (CVSS 8.8): Dell PowerProtect DD, version(s) 8.0, 7.13.1.0, 7.10.1.30, 7.7.5.40, contain(s) an Out-of-bounds Write vulnerability. A…
CVE-2026-23853 — High (CVSS 8.4): Dell PowerProtect Data Domain with Data Domain Operating System (DD OS) of Feature Release versions 7.7.1.0 through…

All CVEs affecting Dell Data Domain Operating System →

Other CWE-787 (Out-of-bounds Write) vulnerabilities

CVE-2026-42369 — Critical (CVSS 10.0): GV-VMS V20 is a Video Monitoring Software used to gather the feeds of many surveillance cameras and manage other…
CVE-2026-4746 — Critical (CVSS 10.0): Out-of-bounds Write vulnerability in timeplus-io proton (base/poco/Foundation/src‎ modules). This vulnerability is…
CVE-2025-43300 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 15.8.5 and iPadOS…
CVE-2025-24201 — Critical (CVSS 10.0): An out-of-bounds write issue was addressed with improved checks to prevent unauthorized actions. This issue is fixed in…
CVE-2024-42479 — Critical (CVSS 10.0): llama.cpp provides LLM inference in C/C++. The unsafe `data` pointer member in the `rpc_tensor` structure can cause…
CVE-2024-39791 — Critical (CVSS 10.0): Stack-based buffer overflow vulnerabilities affecting Vonets industrial wifi bridge relays and wifi bridge…

Browse all CWE-787 (Out-of-bounds Write) vulnerabilities →