How severe is CVE-2013-6696?

CVE-2013-6696 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2013-6696 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-2013-6696?

CVE-2013-6696 primarily affects Cisco Adaptive Security Appliance Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-6696?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2013-6696 published?

CVE-2013-6696 was published on 2013-12-02 and last updated on 2026-06-17.

CVE-2013-6696

CVE-2013-6696 is a high-severity vulnerability in Cisco Adaptive Security Appliance Software with a CVSS 2.0 base score of 7.1. 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-20.

Key facts

Severity: High (CVSS 2.0 base score 7.1)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cisco Adaptive Security Appliance Software
Published: 2013-12-02
Last modified: 2026-06-17

Description

Cisco Adaptive Security Appliance (ASA) Software does not properly handle errors during the processing of DNS responses, which allows remote attackers to cause a denial of service (device reload) via a malformed response, aka Bug ID CSCuj28861.

Frequently asked questions

What is CVE-2013-6696?: Cisco Adaptive Security Appliance (ASA) Software does not properly handle errors during the processing of DNS responses, which allows remote attackers to cause a denial of service (device reload) via a malformed response, aka Bug ID CSCuj28861.
How severe is CVE-2013-6696?: CVE-2013-6696 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2013-6696 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-2013-6696?: CVE-2013-6696 primarily affects Cisco Adaptive Security Appliance Software. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-6696?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2013-6696 published?: CVE-2013-6696 was published on 2013-12-02 and last updated on 2026-06-17.

References

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-6696

Affected products (2)

cpe:2.3:o:cisco:adaptive_security_appliance_software:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:*

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