The EAP-FAST authentication module in Cisco Secure Access Control Server (ACS) 4.x before 4.2.1.15.11, when a RADIUS server configuration is enabled, does not properly parse user identities, which allows remote attackers to execute arbitrary commands via crafted EAP-FAST packets, aka Bug ID CSCui57636
Published Aug 29, 2013
9.3
HIGHCVSS 2.0
EPSS 5.12%
Description
The EAP-FAST authentication module in Cisco Secure Access Control Server (ACS) 4.x before 4.2.1.15.11, when a RADIUS server configuration is enabled, does not properly parse user identities, which allows remote attackers to execute arbitrary commands via crafted EAP-FAST packets, aka Bug ID CSCui57636.
Affected products
No data.
- ≤ 4.2.1.15.10
- 4.2.1.15.0
- 4.2.1.15.1
- 4.2.1.15.2
- 4.2.1.15.3
- 4.2.1.15.4
- 4.2.1.15.6
- 4.2.1.15.7
- 4.2.1.15.8
- 4.2.1.15.9
No data.
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.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.12% (0.05122) | 92.12th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.12% (0.05122) | 91.27th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.72% (0.00722) | 70.21th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.83% (0.01826) | 71.77th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.70% (0.00700) | 70.31th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.35% (0.00354) | 72.86th | v3 (v2023.03.01) |
| Jul 19, 2024 | 0.35% (0.00354) | 72.27th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.50% (0.00503) | 75.74th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.50% (0.00503) | 72.76th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (3)
- http://osvdb.org/96668 vdb-entryx_refsource_OSVDB
- http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130828-acs vendor-advisoryx_refsource_CISCOVendor Advisory
- http://www.securitytracker.com/id/1028958 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/96668 | vdb-entryx_refsource_OSVDB | |
| http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20130828-acs | vendor-advisoryx_refsource_CISCOVendor Advisory | |
| http://www.securitytracker.com/id/1028958 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.