How severe is CVE-2015-6423?

CVE-2015-6423 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2015-6423 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-6423?

CVE-2015-6423 primarily affects Cisco Adaptive Security Appliance Software. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-6423?

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

When was CVE-2015-6423 published?

CVE-2015-6423 was published on 2016-01-15 and last updated on 2026-06-17.

CVE-2015-6423

CVE-2015-6423 is a medium-severity vulnerability in Cisco Adaptive Security Appliance Software with a CVSS 3.x base score of 4.3. 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-264.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 3.5
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-264
Affected product: Cisco Adaptive Security Appliance Software
Published: 2016-01-15
Last modified: 2026-06-17

Description

The DCERPC Inspection implementation in Cisco Adaptive Security Appliance (ASA) Software 9.4.1 through 9.5.1 allows remote authenticated users to bypass an intended DCERPC-only ACL by sending arbitrary network traffic, aka Bug ID CSCuu67782.

Frequently asked questions

What is CVE-2015-6423?: The DCERPC Inspection implementation in Cisco Adaptive Security Appliance (ASA) Software 9.4.1 through 9.5.1 allows remote authenticated users to bypass an intended DCERPC-only ACL by sending arbitrary network traffic, aka Bug ID CSCuu67782.
How severe is CVE-2015-6423?: CVE-2015-6423 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2015-6423 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6423?: CVE-2015-6423 primarily affects Cisco Adaptive Security Appliance Software. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6423?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6423 published?: CVE-2015-6423 was published on 2016-01-15 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:o:cisco:adaptive_security_appliance_software:9.4.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.4.1.1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.4.1.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.4.1.3:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.4.1.5:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.4.2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:adaptive_security_appliance_software:9.5.1:*:*:*:*:*:*:*

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