CVE-2006-5425: XORP (eXtensible Open Router Platform) 1.2 and 1.3 allows remote attackers to cause a denial of service (appli

Routine

MEDIUM 5.0DOWNGRADE

CVE-2006-5425 is a medium-severity flaw (CVSS 5.0) affecting extensible open router platform. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

XORP (eXtensible Open Router Platform) 1.2 and 1.3 allows remote attackers to cause a denial of service (application crash) via an Open Shortest Path First (OSPF) Link State Advertisement (LSA) with an invalid LSA length field.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.8% (top 21%)
CISA exploited list	No
Published	2006-10-20
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: xorp

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

Am I affected?

Timeline

2006-10-20 17:07 UTCPublished CVE record published
2026-06-16 22:31 UTCUpdated Record last modified

xorp extensible open router platform DOWNGRADE

Affected: 1.2 · 1.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2

1. Check installed version

apt-cache policy extensible-open-router-platform || rpm -q extensible-open-router-platform || extensible-open-router-platform --version

2. No fixed release: DOWNGRADE to a release before 1.2 (Debian / Ubuntu)

apt-cache madison extensible-open-router-platform sudo apt install extensible-open-router-platform=<VERSION_BEFORE_1.2> sudo apt-mark hold extensible-open-router-platform

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

dnf --showduplicates list extensible-open-router-platform sudo dnf downgrade extensible-open-router-platform-<VERSION_BEFORE_1.2> sudo dnf versionlock add extensible-open-router-platform

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-2006-5425?

extensible open router platform: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2006-5425 being exploited?

CVE-2006-5425 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-2006-5425 affect?

CVE-2006-5425 affects extensible open router platform. Severity is medium (CVSS 5.0). XORP (eXtensible Open Router Platform) 1.2 and 1.3 allows remote attackers to cause a denial of service (application crash) via an Open Shortest Path First (OSPF) Link State Advertisement (LSA) with an invalid LSA length field.

How urgent is CVE-2006-5425?

Priority 37/100. No elevated risk signals yet.

References

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