CVE-2021-36750: ENC DataVault before 7.2 and VaultAPI v67 mishandle key derivation, making it easier for attackers to determin

This week

HIGH 8.1UPGRADEUPGRADEDOWNGRADE

CVE-2021-36750 is a high-severity flaw (CVSS 8.1) affecting enc datavault, enc vaultapi, secureaccess. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ENC DataVault before 7.2 and VaultAPI v67 mishandle key derivation, making it easier for attackers to determine the passwords of all DataVault users (across USB drives sold under multiple brand names).

Why this priority

High severity
EPSS top 4%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	13.5% (top 4%)
CISA exploited list	No
Weakness	CWE-307
Published	2021-12-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sandisk · zendesk

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-12-22 14:15 UTCPublished CVE record published
2026-06-17 03:59 UTCUpdated Record last modified

zendesk enc datavault UPGRADE

Affected: < 7.2

Fixed in: 7.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy enc-datavault || rpm -q enc-datavault || enc-datavault --version

2. UPGRADE to 7.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade enc-datavault

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade enc-datavault

Note

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

zendesk enc vaultapi UPGRADE

Affected: < 67.0

Fixed in: 67.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy enc-vaultapi || rpm -q enc-vaultapi || enc-vaultapi --version

2. UPGRADE to 67.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade enc-vaultapi

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade enc-vaultapi

Note

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

sandisk secureaccess DOWNGRADE

Affected: 3.02

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.02

1. Check installed version

apt-cache policy secureaccess || rpm -q secureaccess || secureaccess --version

2. No fixed release: DOWNGRADE to a release before 3.02 (Debian / Ubuntu)

apt-cache madison secureaccess sudo apt install secureaccess=<VERSION_BEFORE_3.02> sudo apt-mark hold secureaccess

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list secureaccess sudo dnf downgrade secureaccess-<VERSION_BEFORE_3.02> sudo dnf versionlock add secureaccess

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2021-36750?

enc datavault: upgrade to 7.2; enc vaultapi: upgrade to 67.0; secureaccess: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-36750 being exploited?

CVE-2021-36750 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-2021-36750 affect?

CVE-2021-36750 affects enc datavault, enc vaultapi, secureaccess. Severity is high (CVSS 8.1). ENC DataVault before 7.2 and VaultAPI v67 mishandle key derivation, making it easier for attackers to determine the passwords of all DataVault users (across USB drives sold under multiple brand names).

How urgent is CVE-2021-36750?

Priority 52/100. High severity; EPSS top 4%: very likely to be exploited

References

← Back to latest CVEs