CVE-2015-6357

mediumpriority · track · 38EPSS 0.026 · 85 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

2.63% (85th) EPSS

CVSS 6.8 · medium

Is it mine?

8 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

The rule-update feature in Cisco FireSIGHT Management Center (MC) 5.2 through 5.4.0.1 does not verify the X.509 certificate of the support.sourcefire.com SSL server, which allows man-in-the-middle attackers to spoof this server and provide an invalid package, and consequently execute arbitrary code, via a crafted certificate, aka Bug ID CSCuw06444.

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:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v2.06.1mediumAV:N/AC:M/Au:N/C:P/I:P/A:P/E:POCsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

mattimustang/firepwnerExploit for CVE-2015-6357 Cisco FireSIGHT Management Center Certificate Validation VulnerabilityPoC · poc_in_github

affected products (8)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
cisco firesight system software= 5.2.0nvdUScpe:2.3:a:cisco:firesight_system_software:*:*:*:*:*:*:*:*
cisco firesight system software= 5.3.0nvdUScpe:2.3:a:cisco:firesight_system_software:*:*:*:*:*:*:*:*
cisco firesight system software= 5.3.1.1nvdUScpe:2.3:a:cisco:firesight_system_software:*:*:*:*:*:*:*:*
cisco firesight system software= 5.3.1.2nvdUScpe:2.3:a:cisco:firesight_system_software:*:*:*:*:*:*:*:*
cisco firesight system software= 5.3.1.5nvdUScpe:2.3:a:cisco:firesight_system_software:*:*:*:*:*:*:*:*
cisco firesight system software= 5.4.0nvdUScpe:2.3:a:cisco:firesight_system_software:*:*:*:*:*:*:*:*
cisco firesight system software= 5.4.0.1nvdUScpe:2.3:a:cisco:firesight_system_software:*:*:*:*:*:*:*:*

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 2015-11-18modified 2026-06-17

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+25188 more

references (13)

External citations — patches, advisories, analysis.

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