CVE-2015-6309

mediumpriority · track · 28EPSS 0.017 · 77 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.70% (77th) EPSS

CVSS 6.8 · medium

Is it mine?

3 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

Cisco Email Security Appliance (ESA) 8.5.6-106 and 9.6.0-042 allows remote authenticated users to cause a denial of service (file-descriptor consumption and device reload) via crafted HTTP requests, aka Bug ID CSCuw32211.

cvss

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

6.8

010

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

v2.06.8mediumAV:N/AC:L/Au:S/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 8 · impact 6.9

v2.05.8mediumAV:N/AC:L/Au:S/C:N/I:N/A:C/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-399USprimary

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
cisco email security appliance= 9.6.0-042nvdUScpe:2.3:h:cisco:email_security_appliance:*:*:*:*:*:*:*:*
cisco email security appliance firmware= 8.5.6-106nvdUScpe:2.3:o:cisco:email_security_appliance_firmware:*:*:*:*:*:*:*:*

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 2015-10-02modified 2026-06-17

related (3,726)

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+3721 more

references (5)

External citations — patches, advisories, analysis.

scry

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