CVE-2013-5546

highpriority · track · 32EPSS 0.019 · 79 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.89% (79th) EPSS

CVSS 7.8 · high

Is it mine?

11 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

The TCP reassembly feature in Cisco IOS XE 3.7 before 3.7.3S and 3.8 before 3.8.1S on 1000 ASR devices allows remote attackers to cause a denial of service (device reload) via large TCP packets that are processed by the (1) NAT or (2) ALG component, aka Bug ID CSCud72509.

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-20USprimary

affected products (11)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
cisco asr 1001all versionsnvdUScpe:2.3:h:cisco:asr_1001:*:*:*:*:*:*:*:*
cisco asr 1002all versionsnvdUScpe:2.3:h:cisco:asr_1002:*:*:*:*:*:*:*:*
cisco asr 1002-xall versionsnvdUScpe:2.3:h:cisco:asr_1002-x:*:*:*:*:*:*:*:*
cisco asr 1004all versionsnvdUScpe:2.3:h:cisco:asr_1004:*:*:*:*:*:*:*:*
cisco asr 1006all versionsnvdUScpe:2.3:h:cisco:asr_1006:*:*:*:*:*:*:*:*
cisco asr 1023 routerall versionsnvdUScpe:2.3:h:cisco:asr_1023_router:*:*:*:*:*:*:*:*
cisco ios xe= 3.7.0snvdUScpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
cisco ios xe= 3.7.1snvdUScpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
cisco ios xe= 3.7.2snvdUScpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
cisco ios xe= 3.8.0snvdUScpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*

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 2013-10-31modified 2026-06-16

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+25200 more

references (3)

External citations — patches, advisories, analysis.

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