CVE-2026-46465: Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10,

Q: How do I fix CVE-2026-46465?

data domain operating system: upgrade to newer than 8.7.0.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-46465 being exploited?

CVE-2026-46465 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-46465 affect?

CVE-2026-46465 affects data domain operating system. Severity is medium (CVSS 5.5). 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 use of externall

Q: How urgent is CVE-2026-46465?

Priority 28/100. No elevated risk signals yet.

Routine

MEDIUM 5.5UPGRADE

CVE-2026-46465 is a medium-severity flaw (CVSS 5.5) affecting data domain operating system. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 use of externally-controlled format string vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Information disclosure and denial of service.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-134
Published	2026-07-03
Last modified	2026-10-25

Publisher (CNA): Dell · Vendor: dell

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-03 14:16 UTCPublished CVE record published
2026-10-25 21:10 UTCUpdated Record last modified

dell data domain operating system UPGRADE

Affected: >= 7.7.1.0 and <= 7.13.1.70 · >= 8.0.0.0 and <= 8.3.1.30 · >= 8.4.0.0 and <= 8.7.0.0

Fixed in: newer than 8.7.0.0

Safe to downgrade to: a release before 7.7.1.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-46465?

data domain operating system: upgrade to newer than 8.7.0.0. Exact commands for each OS are on this page.

Is CVE-2026-46465 being exploited?

CVE-2026-46465 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-46465 affect?

CVE-2026-46465 affects data domain operating system. Severity is medium (CVSS 5.5). 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 use of externall

How urgent is CVE-2026-46465?

Priority 28/100. No elevated risk signals yet.

Software pages

Dell vulnerabilities

Related CVEs

CVE-2026-26355 MEDIUM 6.5 UPGRADE Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10,
CVE-2026-54483 MEDIUM 6.7 UPGRADE Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.6, LTS2026 release version 8.6.1.0 through 8.6.1.10,
CVE-2026-46463 MEDIUM 6.5 UPGRADE Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10,
CVE-2026-46464 MEDIUM 4.9 UPGRADE Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10,
CVE-2026-46467 MEDIUM 5.8 UPGRADE Dell PowerProtect Data Domain, versions 7.7.1.0 through 8.7, LTS2026 release version 8.6.1.0 through 8.6.1.10,

References

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