CVE-2026-56796: Dell Command Update (DCU), versions prior to 5.7.1, contain an Improper Link Resolution Before File Access ('L

Q: How do I fix CVE-2026-56796?

command update: upgrade to 5.7.1. Exact commands for each OS are on this page.

Q: Is CVE-2026-56796 being exploited?

CVE-2026-56796 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-2026-56796 affect?

CVE-2026-56796 affects command update. Severity is medium (CVSS 6.6). Dell Command Update (DCU), versions prior to 5.7.1, contain an Improper Link Resolution Before File Access ('Link Following') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading t

Q: How urgent is CVE-2026-56796?

Priority 25/100. No elevated risk signals yet.

Routine

MEDIUM 6.6UPGRADE

CVE-2026-56796 is a medium-severity flaw (CVSS 6.6) affecting command update. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Dell Command Update (DCU), versions prior to 5.7.1, contain an Improper Link Resolution Before File Access ('Link Following') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Elevation of Privileges.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.6 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 94%)
CISA exploited list	No
Weakness	CWE-59
Published	2026-08-19
Last modified	2026-08-21

Publisher (CNA): Dell · Vendor: dell

Last updated 2026-08-21 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-19 15:17 UTCPublished CVE record published
2026-08-21 17:16 UTCUpdated Record last modified

dell command update UPGRADE

Affected: < 5.7.1

Fixed in: 5.7.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy command-update || rpm -q command-update || command-update --version

2. UPGRADE to 5.7.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade command-update

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade command-update

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2026-56796?

command update: upgrade to 5.7.1. Exact commands for each OS are on this page.

Is CVE-2026-56796 being exploited?

CVE-2026-56796 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-2026-56796 affect?

CVE-2026-56796 affects command update. Severity is medium (CVSS 6.6). Dell Command Update (DCU), versions prior to 5.7.1, contain an Improper Link Resolution Before File Access ('Link Following') vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading t

How urgent is CVE-2026-56796?

Priority 25/100. No elevated risk signals yet.

Software pages

Dell vulnerabilities

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CVE-2026-53477 HIGH 7.8 UPGRADE Dell Command Update (DCU), versions prior to 5.7.1, contain a Time-of-check Time-of-use (TOCTOU) Race Conditio
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References

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