CVE-2013-6693

mediumpriority · track · 22EPSS 0.011 · 66 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.13% (66th) EPSS

CVSS 5.4 · medium

Is it mine?

5 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

The MLDP implementation in Cisco IOS 15.3(3)S and earlier on 7600 routers, when many VRFs are configured, allows remote attackers to cause a denial of service (chunk corruption and device reload) by establishing many multicast flows, aka Bug ID CSCue22345.

cvss

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

5.4

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05.4mediumAV:N/AC:H/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 4.9 · impact 6.9

v2.04.6mediumAV:N/AC:H/Au:N/C:N/I:N/A:C/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119USprimary

affected products (5)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
cisco 7600 routerall versionsnvdUScpe:2.3:h:cisco:7600_router:*:*:*:*:*:*:*:*
cisco ios≤ 15.3\(3\)snvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios= 15.3(2)snvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
cisco ios= 15.3snvdUScpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2013-11-22modified 2026-06-17

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+21039 more

references (6)

External citations — patches, advisories, analysis.

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