How severe is CVE-2015-6427?

CVE-2015-6427 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2015-6427 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6427?

CVE-2015-6427 primarily affects Cisco Firesight System Software. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6427?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-6427 published?

CVE-2015-6427 was published on 2015-12-18 and last updated on 2026-06-17.

CVE-2015-6427

CVE-2015-6427 is a medium-severity vulnerability in Cisco Firesight System Software with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-254.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-254
Affected product: Cisco Firesight System Software
Published: 2015-12-18
Last modified: 2026-06-17

Description

Cisco FireSIGHT Management Center allows remote attackers to bypass the HTTP attack detection feature and avoid triggering Snort IDS rules via an SSL session that is mishandled after decryption, aka Bug ID CSCux53437.

Frequently asked questions

What is CVE-2015-6427?: Cisco FireSIGHT Management Center allows remote attackers to bypass the HTTP attack detection feature and avoid triggering Snort IDS rules via an SSL session that is mishandled after decryption, aka Bug ID CSCux53437.
How severe is CVE-2015-6427?: CVE-2015-6427 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2015-6427 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6427?: CVE-2015-6427 primarily affects Cisco Firesight System Software. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6427?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6427 published?: CVE-2015-6427 was published on 2015-12-18 and last updated on 2026-06-17.

References

Affected products (20)

cpe:2.3:a:cisco:firesight_system_software:5.3.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.3.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.3.1.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.3.1.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.3.1.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.3.1.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.3.1.5:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.3.1.7:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.4.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.4.0.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.4.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.4.1.2:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.4.1.3:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:5.4.1.4:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:6.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:6.0.0.1:*:*:*:*:*:*:*
cpe:2.3:a:cisco:firesight_system_software:6.0.1:*:*:*:*:*:*:*

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