ASA 5500 vulnerabilitiesAnd the versions its exploited flaws hit.

Product2 known exploited12 versions
The short answer

ASA 5500 is made by Cisco. We track 62 published vulnerabilities listed under that exact name, across 12 versions. 2 of them are on the list of flaws known to be exploited, the newest added on 24 May 2022. Cisco lists newer releases under their own names, such as ASA 5500 Csc-Ssm, so check those pages too.

Check your version

The most recent ASA 5500 flaw added to the known-exploited list is CVE-2016-6366, on 24 May 2022. We keep watching the known-exploited list.

Other names

Is ASA 5500 listed under other names? Yes.

Cisco also lists ASA 5500 under more specific names, such as ASA 5500 Csc-Ssm and ASA 5500 Firmware. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.

Versions

Which versions of ASA 5500 do the exploited flaws hit?

Each exploited flaw lists the versions it affects, as published by the vendor. Find your version, then patch.

Known exploited

Which ASA 5500 vulnerabilities are being exploited?

2 flaws are on the government list of vulnerabilities known to be exploited. These are the ones criminals are using now, so they go first, whatever their severity score says.

  1. 8.8
    CVE-2016-6366HighKnown exploited
    Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow Vulnerability

    A buffer overflow vulnerability in the Simple Network Management Protocol (SNMP) code of Cisco ASA software could allow an attacker to cause a reload of the affected system or to remotely execute code.

    Chance of use88%Known exploited since24 May 2022
  2. 7.8
    CVE-2016-6367HighKnown exploited
    Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution Vulnerability

    A vulnerability in the command-line interface (CLI) parser of Cisco ASA software could allow an authenticated, local attacker to create a denial-of-service (DoS) condition or potentially execute code.

    Chance of use23%Known exploited since24 May 2022
Exploit likelihood

Which ASA 5500 flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.

50% or more10% to 49%Under 10%
  1. 88%
    CVE-2016-6366HighKnown exploited

    Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on ASA 5500, ASA 5500-X, ASA Services Module, ASA 1000V, ASAv, Firepower 9300 ASA Security Module, PIX, and FWSM devices allows...

    CVSS8.8Published18 Aug 2016
  2. 23%
    CVE-2016-6367HighKnown exploited

    Cisco Adaptive Security Appliance (ASA) Software before 8.4(1) on ASA 5500, ASA 5500-X, PIX, and FWSM devices allows local users to gain privileges via invalid CLI commands, aka Bug ID CSCtu74257 or EPICBANANA.

    CVSS7.8Published18 Aug 2016
  3. 4.2%

    Unspecified vulnerability in Cisco ASA 5500 Series Adaptive Security Appliance 7.2 before 7.2(4.46), 8.0 before 8.0(4.38), 8.1 before 8.1(2.29), and 8.2 before 8.2(1.5); and Cisco PIX 500 Series Security Appliance;...

    CVSS7.8Published19 Feb 2010
  4. 3.4%

    Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.0 before 7.0(8.11), 7.1 and 7.2 before 7.2(5.1), 8.0 before 8.0(5.19), 8.1 before 8.1(2.47), 8.2 before 8.2(2.19), and 8.3 before 8.3(1.8);...

    CVSS7.8Published25 Feb 2011
  5. 3.3%

    Cisco PIX 500 and ASA 5500 Series Security Appliances 6.x before 6.3(5.115), 7.0 before 7.0(5.2), and 7.1 before 7.1(2.5), and the FWSM 3.x before 3.1(3.24), when the "inspect sip" option is enabled, allows remote...

    CVSS7.8Published16 Feb 2007
  6. 3.2%

    The Neighbor Discovery (ND) protocol implementation in the IPv6 stack on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.2(3) and earlier, and Cisco PIX Security Appliances devices,...

    CVSS7.8Published7 Jan 2011
  7. 3.0%

    Unspecified vulnerability in Cisco ASA 5500 Series Adaptive Security Appliance 7.0 before 7.0(8.10), 7.2 before 7.2(4.45), 8.0 before 8.0(5.2), 8.1 before 8.1(2.37), and 8.2 before 8.2(1.16); and Cisco PIX 500 Series...

    CVSS7.8Published19 Feb 2010
  8. 3.0%

    Unspecified vulnerability in Cisco ASA 5500 Series Adaptive Security Appliance 7.2 before 7.2(4.45), 8.0 before 8.0(4.44), 8.1 before 8.1(2.35), and 8.2 before 8.2(1.10), allows remote attackers to cause a denial of...

    CVSS7.8Published19 Feb 2010
  9. 3.0%

    Unspecified vulnerability in Cisco ASA 5500 Series Adaptive Security Appliance 7.0 before 7.0(8.10), 7.2 before 7.2(4.45), 8.0 before 8.0(5.2), 8.1 before 8.1(2.37), and 8.2 before 8.2(1.16); and Cisco PIX 500 Series...

    CVSS7.8Published19 Feb 2010
Precursor Intelligence

Running ASA 5500? We'll keep checking.

Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.

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We track 62 published vulnerabilities listed under the name ASA 5500, across 12 versions. The most recent ASA 5500 flaw added to the known-exploited list is CVE-2016-6366, on 24 May 2022.

2 are on the list of flaws known to be exploited. The most recently added are CVE-2016-6366 and CVE-2016-6367.

Cisco also lists ASA 5500 under more specific names, such as ASA 5500 Csc-Ssm and ASA 5500 Firmware. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.

Create a Precursor Intelligence account and track ASA 5500. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.