How severe is CVE-2003-0550?

CVE-2003-0550 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2003-0550 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-0550?

CVE-2003-0550 affects Redhat Linux. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2003-0550?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2003-0550 published?

CVE-2003-0550 was published on 2003-08-27 and last updated on 2026-06-16.

CVE-2003-0550

CVE-2003-0550 is a medium-severity vulnerability in Redhat Linux with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Redhat Linux
Published: 2003-08-27
Last modified: 2026-06-16

Description

The STP protocol, as enabled in Linux 2.4.x, does not provide sufficient security by design, which allows attackers to modify the bridge topology.

Frequently asked questions

What is CVE-2003-0550?: The STP protocol, as enabled in Linux 2.4.x, does not provide sufficient security by design, which allows attackers to modify the bridge topology.
How severe is CVE-2003-0550?: CVE-2003-0550 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2003-0550 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0550?: CVE-2003-0550 affects Redhat Linux. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-0550?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-0550 published?: CVE-2003-0550 was published on 2003-08-27 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:o:redhat:linux:2.4.2:*:*:*:*:*:*:*

More vulnerabilities in Redhat Linux

CVE-2005-3625 — Critical (CVSS 10.0): Xpdf, as used in products such as gpdf, kpdf, pdftohtml, poppler, teTeX, CUPS, libextractor, and others, allows…
CVE-2004-0903 — Critical (CVSS 10.0): Stack-based buffer overflow in the writeGroup function in nsVCardObj.cpp for Mozilla Firefox before the Preview…
CVE-2004-0902 — Critical (CVSS 10.0): Multiple heap-based buffer overflows in Mozilla Firefox before the Preview Release, Mozilla before 1.7.3, and…
CVE-2004-1026 — Critical (CVSS 10.0): Multiple integer overflows in the image handler for imlib 1.9.14 and earlier, which is used by gkrellm and several…
CVE-2004-1025 — Critical (CVSS 10.0): Multiple heap-based buffer overflows in imlib 1.9.14 and earlier, which is used by gkrellm and several window managers,…
CVE-2004-0904 — Critical (CVSS 10.0): Integer overflow in the bitmap (BMP) decoder for Mozilla Firefox before the Preview Release, Mozilla before 1.7.3, and…

All CVEs affecting Redhat Linux →