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01 Record

CVE-2020-3259

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Information Disclosure Vulnerability

HighKEVPUBLISHEDCNA: cisco
CNA base score7.5 CVSS v3.xCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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02 Description

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Information Disclosure Vulnerability

03 Exploitation and scoring

Exploitation
Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2024-02-15. Federal remediation due 2024-03-07. Known ransomware campaign use: reported by CISA.
SSVC decision
  • ExploitationactiveCISA reports credible evidence of active exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
71.50% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 99.4% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-08-12.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-05-06 16:41Z6 YR AGO
Last updated
2026-08-12 03:56Z2 MO AGO
Reserved
2019-12-12
Assigning CNA
cisco
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
  • CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
Data version
5.2
Document digest
a8770399f3cf27a815567f68da28c73670c3ce22058384984cb534276c7b58ef

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco Adaptive Security Appliance (ASA) SoftwareNot specified—
ciscofirepower_threat_defense6.2.3 to < 6.2.3.16, 6.3.0 to < 6.3.0.6, 6.4.0 to < 6.4.0.9, 6.5.0 to < 6.5.0.5—
ciscoadaptive_security_appliance_software9.8 to < 9.8.4.20, 9.9 to < 9.9.2..67, 9.10 to < 9.10.1.40, 9.12 to < 9.12.3.9, 9.13 to < 9.13.1.10—

06 References