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CVE-2001-0869: Format string vulnerability in the default logging callback function _sasl_syslog in common.c in Cyrus SASL li

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This month
HIGH 7.5WATCHLISTDOWNGRADEDOWNGRADEMITIGATE

CVE-2001-0869 is a high-severity flaw (CVSS 7.5) affecting openlinux workstation, linux powertools, openlinux eserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Format string vulnerability in the default logging callback function _sasl_syslog in common.c in Cyrus SASL library (cyrus-sasl) may allow remote attackers to execute arbitrary commands.

Why this priority

  • High severity
  • On your watchlist

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

Risk facts

CVSS score7.5 (High)
EPSS exploit chance3.0% (top 13%)
CISA exploited listNo
Published2001-12-21
Last modified2026-06-16
Publisher (CNA): MITRE · Vendor: caldera · redhat · suse

Share: LinkedIn · X · Reddit

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

Am I affected?

Timeline

caldera openlinux workstation DOWNGRADE
Affected: 3.1
Fixed in: no fixed release known
Safe to downgrade to: a release before 3.1
1. Check installed version
apt-cache policy openlinux-workstation || rpm -q openlinux-workstation || openlinux-workstation --version
2. No fixed release: DOWNGRADE to a release before 3.1 (Debian / Ubuntu)
apt-cache madison openlinux-workstation sudo apt install openlinux-workstation=<VERSION_BEFORE_3.1> sudo apt-mark hold openlinux-workstation
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list openlinux-workstation sudo dnf downgrade openlinux-workstation-<VERSION_BEFORE_3.1> sudo dnf versionlock add openlinux-workstation
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.
redhat linux powertools DOWNGRADE
Affected: 6.2
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.2
1. Check installed version
apt-cache policy linux-powertools || rpm -q linux-powertools || linux-powertools --version
2. No fixed release: DOWNGRADE to a release before 6.2 (Debian / Ubuntu)
apt-cache madison linux-powertools sudo apt install linux-powertools=<VERSION_BEFORE_6.2> sudo apt-mark hold linux-powertools
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list linux-powertools sudo dnf downgrade linux-powertools-<VERSION_BEFORE_6.2> sudo dnf versionlock add linux-powertools
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.
caldera openlinux eserver MITIGATE
Affected: 3.1
Fixed in: no fixed release known
Safe to downgrade to: a release before 3.1
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.
redhat linux MITIGATE
Affected: 7.0 · 7.2
Fixed in: no fixed release known
Safe to downgrade to: a release before 7.0
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.
suse suse linux MITIGATE
Affected: 7.0 · 7.1 · 7.2 · 7.3
Fixed in: no fixed release known
Safe to downgrade to: a release before 7.0
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-2001-0869?

openlinux workstation: downgrade or apply the listed mitigation; linux powertools: downgrade or apply the listed mitigation; openlinux eserver: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2001-0869 being exploited?

CVE-2001-0869 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-2001-0869 affect?

CVE-2001-0869 affects openlinux workstation, linux powertools, openlinux eserver. Severity is high (CVSS 7.5). Format string vulnerability in the default logging callback function _sasl_syslog in common.c in Cyrus SASL library (cyrus-sasl) may allow remote attackers to execute arbitrary commands.

How urgent is CVE-2001-0869?

Priority 53/100. High severity; On your watchlist

Related CVEs

References

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