How severe is CVE-2013-7309?

CVE-2013-7309 has a CVSS 2.0 base score of 5.4, rated medium severity.

Is CVE-2013-7309 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-7309?

CVE-2013-7309 affects Extremenetworks Exos. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2013-7309?

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

When was CVE-2013-7309 published?

CVE-2013-7309 was published on 2014-01-23 and last updated on 2026-06-17.

CVE-2013-7309

CVE-2013-7309 is a medium-severity vulnerability in Extremenetworks Exos with a CVSS 2.0 base score of 5.4. 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 5.4)
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Extremenetworks Exos
Published: 2014-01-23
Last modified: 2026-06-17

Description

The OSPF implementation in Extreme Networks EXOS does not consider the possibility of duplicate Link State ID values in Link State Advertisement (LSA) packets before performing operations on the LSA database, which allows remote attackers to cause a denial of service (routing disruption) or obtain sensitive packet information via a crafted LSA packet, a related issue to CVE-2013-0149.

Frequently asked questions

What is CVE-2013-7309?: The OSPF implementation in Extreme Networks EXOS does not consider the possibility of duplicate Link State ID values in Link State Advertisement (LSA) packets before performing operations on the LSA database, which allows remote attackers to cause a denial of service (routing disruption) or obtain sensitive packet information via a crafted LSA packet, a related issue to CVE-2013-0149.
How severe is CVE-2013-7309?: CVE-2013-7309 has a CVSS 2.0 base score of 5.4, rated medium severity.
Is CVE-2013-7309 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-7309?: CVE-2013-7309 affects Extremenetworks Exos. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2013-7309?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-7309 published?: CVE-2013-7309 was published on 2014-01-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:extremenetworks:exos:-:*:*:*:*:*:*:*

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