Coverage › CVE-2020-3259
CVE-2020-3259 Unmapped
Cisco ASA and FTD Information Disclosure Vulnerability
- Vendor / product
- Cisco — Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)
- Description (CISA)
- 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.
- Added to KEV
- 2024-02-15
- Due date
- 2024-03-07
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Known ransomware use
- Known
- CWE
- CWE-200
- CISA notes
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-info-disclose-9eJtycMB
https://nvd.nist.gov/vuln/detail/CVE-2020-3259 - Elsewhere
- cve.org · NVD · CISA KEV · JSON
ATT&CK techniques
No public source states how this vulnerability is exploited in ATT&CK terms.
The only authoritative CVE → ATT&CK mapping in the open — CTID's Mappings Explorer, pinned to a KEV snapshot of 2025-07-28 and ATT&CK 16.1 — does not include CVE-2020-3259. CISA's catalogue carries no technique field. kevmap does not infer techniques from the CWE (CWE-200) — here is why — and does not guess.
This page will change state automatically if a mapping is published. What is shown above is everything CISA publishes about the entry.