CVE-2011-0393

Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.0 before 7.0(8.12), 7.1 and 7.2 before 7.2(5.2), 8.0 before 8.0(5.21), 8.1 before 8.1(2.49), 8.2 before 8.2(3.6), and 8.3 before 8.3(2.7) and Cisco PIX Security Appliances 500 series devices, when transparent firewall mode is configured but IPv6 is not configured, allow remote attackers to cause a denial of service (packet buffer exhaustion and device outage) via IPv6 traffic, aka Bug ID CSCtj04707.

Published: 2011-02-25 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-0393 is rated Moderate Risk (61.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.60%). EPSS rose +1.51% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-0393

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.09% 2.60% +1.51%
2 2025-03-17 1.35% 1.09% -0.26%
3 2024-12-17 — 1.35% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-0393

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 6.9 [email protected]

Weakness enumeration for CVE-2011-0393

Affected software / configurations for CVE-2011-0393

Vendor Product Version Raw CPE
cisco adaptive_security_appliance_software <= 8.3\(1\) cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0\(0\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0\(0\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0\(2\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0\(2\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0\(4\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0\(4\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0\(5\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0\(5\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0\(5.2\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0\(5.2\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0\(6.7\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0\(6.7\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0.1 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0.1:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0.1.4 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0.1.4:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0.2 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0.2:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0.4 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0.4:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0.4.3 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0.4.3:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0.5 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0.5:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0.6 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0.6:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0.7 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0.7:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0.8 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0.8:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.0.8 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.0.8:interim:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.1 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.1:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.1\(2\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.1\(2\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.1\(2.5\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.1\(2.5\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.1\(2.27\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.1\(2.27\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.1\(2.48\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.1\(2.48\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.1\(2.49\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.1\(2.49\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.1\(5\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.1\(5\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.1.1 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.1.1:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.1.2 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.1.2:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(1\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(1\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(1.22\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(1.22\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(2\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(2\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(2.5\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(2.5\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(2.7\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(2.7\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(2.8\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(2.8\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(2.10\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(2.10\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(2.14\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(2.14\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(2.15\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(2.15\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(2.16\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(2.16\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(2.17\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(2.17\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(2.18\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(2.18\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(2.19\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(2.19\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2\(2.48\) cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2\(2.48\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2.1 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2.1:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2.2 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2.2:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2.3 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2.3:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2.4 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2.4:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 7.2.5 cpe:2.3:o:cisco:adaptive_security_appliance_software:7.2.5:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.0 cpe:2.3:o:cisco:adaptive_security_appliance_software:8.0:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.0.2 cpe:2.3:o:cisco:adaptive_security_appliance_software:8.0.2:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.0.3 cpe:2.3:o:cisco:adaptive_security_appliance_software:8.0.3:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.0.4 cpe:2.3:o:cisco:adaptive_security_appliance_software:8.0.4:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.0.5 cpe:2.3:o:cisco:adaptive_security_appliance_software:8.0.5:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.2\(1\) cpe:2.3:o:cisco:adaptive_security_appliance_software:8.2\(1\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.2\(2\) cpe:2.3:o:cisco:adaptive_security_appliance_software:8.2\(2\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.2\(3\) cpe:2.3:o:cisco:adaptive_security_appliance_software:8.2\(3\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.2\(3.9\) cpe:2.3:o:cisco:adaptive_security_appliance_software:8.2\(3.9\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.2\(4\) cpe:2.3:o:cisco:adaptive_security_appliance_software:8.2\(4\):*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.2.1 cpe:2.3:o:cisco:adaptive_security_appliance_software:8.2.1:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.2.2 cpe:2.3:o:cisco:adaptive_security_appliance_software:8.2.2:*:*:*:*:*:*:*
cisco adaptive_security_appliance_software 8.2.2 cpe:2.3:o:cisco:adaptive_security_appliance_software:8.2.2:interim:*:*:*:*:*:*
cisco 5500_series_adaptive_security_appliance — cpe:2.3:h:cisco:5500_series_adaptive_security_appliance:*:*:*:*:*:*:*:*
cisco asa_5500 — cpe:2.3:h:cisco:asa_5500:*:*:*:*:*:*:*:*
cisco pix_500 — cpe:2.3:h:cisco:pix_500:*:*:*:*:*:*:*:*

References for CVE-2011-0393

cvelogic Threat Intelligence