CVE-2020-3259
Cisco / Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)
Cisco ASA and FTD Information Disclosure Vulnerability
Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an information disclosure vulnerability. An attacker could retrieve memory contents on an affected device, which could lead to the disclosure of confidential information due to a buffer tracking issue when the software parses invalid URLs that are requested from the web services interface. This vulnerability affects only specific AnyConnect and WebVPN configurations.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-info-disclose-9eJtycMB; https://nvd.nist.gov/vuln/detail/CVE-2020-3259
Metadata
| Added to KEV | 2024-02-15 |
| Remediation due | 2024-03-07 |
| Ransomware use | Known |
| CWEs | CWE-200 |
| Ingested | 2026-04-24 15:03:13 |
Cross-mesh regulatory overlay
If you're breached via this CVE, what disclosure laws and cyber regs fire? Asks LexiWorld and RegulatoryRadar via signed mesh.