Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Information Disclosure Vulnerability
Published May 6, 2020 ·Due Mar 7, 2024
7.5
HIGHCVSS 3.1
EPSS 71.79%
Description
A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to retrieve memory contents on an affected device, which could lead to the disclosure of confidential information. The vulnerability is due to a buffer tracking issue when the software parses invalid URLs that are requested from the web services interface. An attacker could exploit this vulnerability by sending a crafted GET request to the web services interface. A successful exploit could allow the attacker to retrieve memory contents, which could lead to the disclosure of confidential information. Note: This vulnerability affects only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section.
Affected products
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||
|---|---|---|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software | n/a |
|
- ≥ 6.2.3 · < 6.2.3.16
- ≥ 6.3.0 · < 6.3.0.6
- ≥ 6.4.0 · < 6.4.0.9
- ≥ 6.5.0 · < 6.5.0.5
- ≥ 9.8 · < 9.8.4.20
- ≥ 9.9 · < 9.9.2.67
- ≥ 9.10 · < 9.10.1.40
- ≥ 9.12 · < 9.12.3.9
- ≥ 9.13 · < 9.13.1.10
-
- Version 9.10StatusaffectedConstraints<9.10.1.40
- Version 9.12StatusaffectedConstraints<9.12.3.9
- Version 9.13StatusaffectedConstraints<9.13.1.10
- Version 9.8StatusaffectedConstraints<9.8.4.20
- Version 9.9StatusaffectedConstraints<9.9.2..67
- Version
-
- Version 6.2.3StatusaffectedConstraints<6.2.3.16
- Version 6.3.0StatusaffectedConstraints<6.3.0.6
- Version 6.4.0StatusaffectedConstraints<6.4.0.9
- Version 6.5.0StatusaffectedConstraints<6.5.0.5
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cisco | Adaptive Security Appliance Software | n/a |
| ||||||||||||||||||
| Cisco | Firepower Threat Defense | n/a |
|
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
AV:N/AC:L/Au:N/C:P/I:N/A:N
Date Added
Feb 15, 2024
Patch Due
Mar 7, 2024
Required Action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
YesTechnical Impact
PartialDecision
n/aAssessed Oct 24, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (55 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 71.79% (0.71789) | 99.41th | v5 (v2026.06.15) |
| Aug 24, 2026 | 71.79% (0.71789) | 99.37th | v5 (v2026.06.15) |
| Jul 24, 2026 | 69.34% (0.69336) | 99.29th | v5 (v2026.06.15) |
| Jun 15, 2026 | 71.79% (0.71789) | 99.34th | v5 (v2026.06.15) |
| Jan 27, 2026 | 70.15% (0.70150) | 98.63th | v4 (v2025.03.14) |
| Jan 18, 2026 | 72.96% (0.72960) | 98.73th | v4 (v2025.03.14) |
| Dec 6, 2025 | 70.15% (0.70150) | 98.60th | v4 (v2025.03.14) |
| Nov 21, 2025 | 72.96% (0.72960) | 98.72th | v4 (v2025.03.14) |
| Nov 18, 2025 | 35.13% (0.35130) | 96.81th | v4 (v2025.03.14) |
| Nov 4, 2025 | 67.70% (0.67698) | 98.50th | v4 (v2025.03.14) |
| Nov 1, 2025 | 70.06% (0.70059) | 98.61th | v4 (v2025.03.14) |
| Oct 29, 2025 | 67.70% (0.67698) | 98.50th | v4 (v2025.03.14) |
| Oct 22, 2025 | 65.49% (0.65491) | 98.39th | v4 (v2025.03.14) |
| Oct 20, 2025 | 54.33% (0.54329) | 97.87th | v4 (v2025.03.14) |
| Oct 17, 2025 | 58.21% (0.58208) | 98.06th | v4 (v2025.03.14) |
| Oct 1, 2025 | 52.90% (0.52896) | 97.89th | v4 (v2025.03.14) |
| Sep 29, 2025 | 54.33% (0.54329) | 97.95th | v4 (v2025.03.14) |
| Sep 26, 2025 | 51.14% (0.51139) | 97.80th | v4 (v2025.03.14) |
| Sep 17, 2025 | 55.13% (0.55135) | 97.99th | v4 (v2025.03.14) |
| Sep 16, 2025 | 58.21% (0.58208) | 98.13th | v4 (v2025.03.14) |
| Sep 3, 2025 | 52.90% (0.52896) | 97.89th | v4 (v2025.03.14) |
| Sep 1, 2025 | 56.83% (0.56832) | 98.06th | v4 (v2025.03.14) |
| Aug 21, 2025 | 58.21% (0.58208) | 98.10th | v4 (v2025.03.14) |
| Aug 4, 2025 | 53.76% (0.53760) | 97.88th | v4 (v2025.03.14) |
| Aug 1, 2025 | 52.32% (0.52320) | 97.83th | v4 (v2025.03.14) |
| Jun 4, 2025 | 53.76% (0.53760) | 97.83th | v4 (v2025.03.14) |
| Jun 1, 2025 | 52.32% (0.52320) | 97.78th | v4 (v2025.03.14) |
| May 28, 2025 | 53.76% (0.53760) | 97.83th | v4 (v2025.03.14) |
| May 4, 2025 | 50.56% (0.50556) | 97.67th | v4 (v2025.03.14) |
| May 1, 2025 | 49.09% (0.49087) | 97.62th | v4 (v2025.03.14) |
| Mar 30, 2025 | 51.14% (0.51139) | 97.65th | v4 (v2025.03.14) |
| Mar 29, 2025 | 73.08% (0.73084) | 98.40th | v4 (v2025.03.14) |
| Mar 28, 2025 | 55.13% (0.55135) | 97.84th | v4 (v2025.03.14) |
| Mar 27, 2025 | 75.61% (0.75615) | 98.80th | v4 (v2025.03.14) |
| Mar 26, 2025 | 55.13% (0.55135) | 97.84th | v4 (v2025.03.14) |
| Mar 20, 2025 | 51.80% (0.51797) | 97.70th | v4 (v2025.03.14) |
| Mar 19, 2025 | 75.61% (0.75615) | 98.83th | v4 (v2025.03.14) |
| Mar 18, 2025 | 58.05% (0.58049) | 98.00th | v4 (v2025.03.14) |
| Mar 17, 2025 | 52.05% (0.52049) | 97.66th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.71% (0.02709) | 90.86th | v3 (v2023.03.01) |
| Jun 15, 2024 | 2.71% (0.02709) | 90.54th | v3 (v2023.03.01) |
| Feb 16, 2024 | 1.93% (0.01928) | 88.24th | v3 (v2023.03.01) |
| Jan 22, 2024 | 0.24% (0.00237) | 61.81th | v3 (v2023.03.01) |
| May 10, 2023 | 0.25% (0.00246) | 61.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.24% (0.00241) | 60.21th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 10.85% (0.10855) | 88.34th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.44% (0.02445) | 54.79th | v1 |
| Jan 6, 2022 | 2.44% (0.02445) | 54.36th | v1 |
| Oct 9, 2021 | 0.56% (0.00556) | 33.64th | v1 |
| Sep 18, 2021 | 2.44% (0.02445) | 78.47th | v1 |
| Sep 1, 2021 | 0.56% (0.00556) | 33.69th | v1 |
| Apr 14, 2021 | 0.56% (0.00556) | 0.00th | v1 |
References (2)
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-info-disclose-9eJtycMB vendor-advisoryx_refsource_CISCOVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3259 government-resourceUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-info-disclose-9eJtycMB | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3259 | government-resourceUS Government Resource |
Change history (0)
No recorded changes yet.