CVE-2007-5591

highpriority · track · 32EPSS 0.023 · 83 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.29% (83rd) EPSS

CVSS 7.8 · high

Is it mine?

8 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-28

The CS1000 signaling server in Nortel Enterprise VoIP-Core-CS 1000M Chassis/Cabinet, Enterprise VoIP-Core-CS 1000E and 1000S, Meridian-Core-Option 11C Chassis and Cabinet, and Meridian-Core-Option 51C, 61C, and 81C allows remote attackers to cause a denial of service (telephony application outage) via a flood of packets to Embedded LAN (ELAN) ports.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–7.8

v2.07.8highAV:N/AC:L/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 10 · impact 6.9

v2.06.6mediumAV:N/AC:L/Au:N/C:N/I:N/A:C/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-399USLLM-inferredCWE-400USLLM-inferred

affected products (8)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
nortel meridian option 11call versionsnvdUScpe:2.3:a:nortel:meridian_option_11c:*:*:*:*:*:*:*:*
nortel meridian option 51call versionsnvdUScpe:2.3:a:nortel:meridian_option_51c:*:*:*:*:*:*:*:*
nortel meridian option 61call versionsnvdUScpe:2.3:a:nortel:meridian_option_61c:*:*:*:*:*:*:*:*
nortel meridian option 81call versionsnvdUScpe:2.3:a:nortel:meridian_option_81c:*:*:*:*:*:*:*:*
nortel voip-core-cs= 1000envdUScpe:2.3:a:nortel:voip-core-cs:*:*:*:*:*:*:*:*
nortel voip-core-cs= 1000mnvdUScpe:2.3:a:nortel:voip-core-cs:*:*:*:*:*:*:*:*
nortel voip-core-cs= 1000snvdUScpe:2.3:a:nortel:voip-core-cs:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2007-10-19modified 2026-06-16

references (18)

External citations — patches, advisories, analysis.

scry

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