CVE-2001-0967: Knox Arkeia server 4.2, and possibly other versions, uses a constant salt when encrypting passwords using the

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2001-0967 is a critical-severity flaw (CVSS 9.8) affecting arkeia. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Knox Arkeia server 4.2, and possibly other versions, uses a constant salt when encrypting passwords using the crypt() function, which makes it easier for an attacker to conduct brute force password guessing.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 39%)
CISA exploited list	No
Weakness	CWE-916
Published	2001-08-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: arkeia

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2001-08-31 04:00 UTCPublished CVE record published
2026-06-16 21:55 UTCUpdated Record last modified

arkeia arkeia DOWNGRADE

Affected: 4.2 · 4.2.8-2

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.2 (Debian / Ubuntu)

apt-cache madison arkeia sudo apt install arkeia=<VERSION_BEFORE_4.2> sudo apt-mark hold arkeia

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

dnf --showduplicates list arkeia sudo dnf downgrade arkeia-<VERSION_BEFORE_4.2> sudo dnf versionlock add arkeia

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-2001-0967?

arkeia: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2001-0967 being exploited?

CVE-2001-0967 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-2001-0967 affect?

CVE-2001-0967 affects arkeia. Severity is critical (CVSS 9.8). Knox Arkeia server 4.2, and possibly other versions, uses a constant salt when encrypting passwords using the crypt() function, which makes it easier for an attacker to conduct brute force password guessing.

How urgent is CVE-2001-0967?

Priority 55/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2001-0988 HIGH 7.2 UPGRADE Arkeia backup server 4.2.8-2 and earlier creates its database files with world-writable permissions, which cou
CVE-2001-0968 HIGH 10.0 DOWNGRADE Knox Arkeia server 4.2, and possibly other versions, installs its root user with a null password by default, w
CVE-1999-1534 HIGH 7.2 DOWNGRADE Buffer overflow in (1) nlservd and (2) rnavc in Knox Software Arkeia backup product allows local users to obta
CVE-1999-0788 MEDIUM 5.0 DOWNGRADE Arkiea nlservd allows remote attackers to conduct a denial of service.

References

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