How severe is CVE-2008-6576?

CVE-2008-6576 has a CVSS 2.0 base score of 7.8, rated high severity.

Is CVE-2008-6576 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-2008-6576?

CVE-2008-6576 affects Nortel Cs1000. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-6576?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2008-6576 published?

CVE-2008-6576 was published on 2009-04-01 and last updated on 2026-06-16.

CVE-2008-6576

CVE-2008-6576 is a high-severity vulnerability in Nortel Cs1000 with a CVSS 2.0 base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.8)
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Nortel Cs1000
Published: 2009-04-01
Last modified: 2026-06-16

Description

Unspecified vulnerability in the "session limitation technique" in the FTP service on Nortel Communications Server 1000 (CS1K) 4.50.x, when running on VGMC or signaling nodes, allows remote attackers to cause a denial of service (resource exhaustion and failed updates) via unknown vectors that causes consumption of all available sessions.

Frequently asked questions

What is CVE-2008-6576?: Unspecified vulnerability in the "session limitation technique" in the FTP service on Nortel Communications Server 1000 (CS1K) 4.50.x, when running on VGMC or signaling nodes, allows remote attackers to cause a denial of service (resource exhaustion and failed updates) via unknown vectors that causes consumption of all available sessions.
How severe is CVE-2008-6576?: CVE-2008-6576 has a CVSS 2.0 base score of 7.8, rated high severity.
Is CVE-2008-6576 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-2008-6576?: CVE-2008-6576 affects Nortel Cs1000. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-6576?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2008-6576 published?: CVE-2008-6576 was published on 2009-04-01 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:h:nortel:cs1000:4.50:*:*:*:*:*:*:*

More vulnerabilities in Nortel Cs1000

CVE-2008-6578 — Critical (CVSS 10.0): Multiple unspecified vulnerabilities in Nortel Communication Server 1000 4.50.x allow remote attackers to execute…
CVE-2008-6577 — Critical (CVSS 10.0): Nortel MG1000S, Signaling Server, and Call Server on the Communications Server 1000 (CS1K) 4.50.x contain multiple…
CVE-2008-6579 — Medium (CVSS 5.0): Nortel Communication Server 1000 4.50.x allows remote attackers to obtain Web application structure via unknown vectors…

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