CISA KEV · Known exploitedHigh

CVE-2016-6366

Cisco Adaptive Security Appliance (ASA)

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 remote authenticated users to execute arbitrary code via crafted IPv4 SNMP packets, aka Bug ID CSCva92151 or EXTRABACON.

CVSS: 8.8
EPSS: 87.6%
CISA KEV: Listed
Published: 2016.08.19

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability87.6%

Technical severityCVSS 8.8

Vulnerability overview

Affected product and versions

Product: Cisco Adaptive Security Appliance (ASA)
Affected versions: >= 7.2.1 < 9.0.4.40, >= 9.1.1 < 9.1.7\(9\), >= 9.2.0 < 9.2.4\(14\), >= 9.3.0 < 9.3.3\(10\), >= 9.4.0.115 < 9.4.3\(8\), >= 9.5.0 <= 9.5\(3\), >= 9.6.0 < 9.6.1\(11\), 8.7.1, 8.7.1.1
Fixed versions: 9.0.4.40, 9.1.7\(9\), 9.2.4\(14\), 9.3.3\(10\), 9.4.3\(8\), 9.6.1\(11\)

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2022.06.14

1
Identify
Confirm that Cisco Adaptive Security Appliance (ASA) and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-119, CWE-120
KEV added: 2022.05.24
Ransomware use: 미확인