How severe is CVE-2008-5871?

CVE-2008-5871 has a CVSS 2.0 base score of 6.4, rated medium severity.

Is CVE-2008-5871 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-5871?

CVE-2008-5871 affects Nortel Multimedia Communication Server 5100. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2008-5871?

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

When was CVE-2008-5871 published?

CVE-2008-5871 was published on 2009-01-08 and last updated on 2026-06-16.

CVE-2008-5871

CVE-2008-5871 is a medium-severity vulnerability in Nortel Multimedia Communication Server 5100 with a CVSS 2.0 base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-255.

Key facts

Severity: Medium (CVSS 2.0 base score 6.4)
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Nortel Multimedia Communication Server 5100
Published: 2009-01-08
Last modified: 2026-06-16

Description

Nortel Multimedia Communication Server (MSC) 5100 3.0.13 does not verify credentials during call placement, which allows remote attackers to spoof and redirect VoIP calls, possibly related to the snoop command.

Frequently asked questions

What is CVE-2008-5871?: Nortel Multimedia Communication Server (MSC) 5100 3.0.13 does not verify credentials during call placement, which allows remote attackers to spoof and redirect VoIP calls, possibly related to the snoop command.
How severe is CVE-2008-5871?: CVE-2008-5871 has a CVSS 2.0 base score of 6.4, rated medium severity.
Is CVE-2008-5871 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2008-5871?: CVE-2008-5871 affects Nortel Multimedia Communication Server 5100. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2008-5871?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2008-5871 published?: CVE-2008-5871 was published on 2009-01-08 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:nortel:multimedia_communication_server_5100:3.0.13:*:*:*:*:*:*:*

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