CVE-2013-0294: packet.py in pyrad before 2.1 uses weak random numbers to generate RADIUS authenticators and hash passwords, w

Q: How do I fix CVE-2013-0294?

pyrad: upgrade to 2.1; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2013-0294 being exploited?

CVE-2013-0294 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-2013-0294 affect?

CVE-2013-0294 affects pyrad, fedora. Severity is medium (CVSS 5.9). packet.py in pyrad before 2.1 uses weak random numbers to generate RADIUS authenticators and hash passwords, which makes it easier for remote attackers to obtain sensitive information via a brute force attack.

Q: How urgent is CVE-2013-0294?

Priority 47/100. Remotely exploitable, no login, no user action

This month

MEDIUM 5.9REMOTEUPGRADEMITIGATE

CVE-2013-0294 is a medium-severity flaw (CVSS 5.9) affecting pyrad, fedora. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

packet.py in pyrad before 2.1 uses weak random numbers to generate RADIUS authenticators and hash passwords, which makes it easier for remote attackers to obtain sensitive information via a brute force attack.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	2.9% (top 13%)
CISA exploited list	No
Weakness	CWE-330
Published	2020-01-28
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: fedoraproject · pyrad project

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

Am I affected?

Timeline

2020-01-28 16:15 UTCPublished CVE record published
2026-06-16 23:49 UTCUpdated Record last modified

pyrad project pyrad UPGRADE

Affected: < 2.1

Fixed in: 2.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 2.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pyrad

Note

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

fedoraproject fedora MITIGATE

Affected: 18 · 19 · 20

Fixed in: no fixed release known

Safe to downgrade to: a release before 18

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-2013-0294?

pyrad: upgrade to 2.1; fedora: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-0294 being exploited?

CVE-2013-0294 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-2013-0294 affect?

CVE-2013-0294 affects pyrad, fedora. Severity is medium (CVSS 5.9). packet.py in pyrad before 2.1 uses weak random numbers to generate RADIUS authenticators and hash passwords, which makes it easier for remote attackers to obtain sensitive information via a brute force attack.

How urgent is CVE-2013-0294?

Priority 47/100. Remotely exploitable, no login, no user action

References

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