A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code
Published Jan 29, 2018
10.0
CRITICALCVSS 3.0
EPSS 86.78%
Description
A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code. The vulnerability is due to an attempt to double free a region of memory when the webvpn feature is enabled on the Cisco ASA device. An attacker could exploit this vulnerability by sending multiple, crafted XML packets to a webvpn-configured interface on the affected system. An exploit could allow the attacker to execute arbitrary code and obtain full control of the system, or cause a reload of the affected device. This vulnerability affects Cisco ASA Software that is running on the following Cisco products: 3000 Series Industrial Security Appliance (ISA), ASA 5500 Series Adaptive Security Appliances, ASA 5500-X Series Next-Generation Firewalls, ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, ASA 1000V Cloud Firewall, Adaptive Security Virtual Appliance (ASAv), Firepower 2100 Series Security Appliance, Firepower 4110 Security Appliance, Firepower 9300 ASA Security Module, Firepower Threat Defense Software (FTD). Cisco Bug IDs: CSCvg35618.
Affected products
- Vendor n/a Product Cisco Adaptive Security Appliance Defaultn/a
- Version Cisco Adaptive Security ApplianceStatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Cisco Adaptive Security Appliance | n/a |
|
Configuration 1
- < 9.1.7.23
- ≥ 9.2.0 · < 9.2.4.27
- ≥ 9.3.0 · < 9.4.4.16
- ≥ 9.5.0 · < 9.6.4.3
- ≥ 9.7.0 · < 9.7.1.21
- ≥ 9.8.0 · < 9.8.2.20
- ≥ 9.9.0 · < 9.9.1.2
Configuration 2
- 6.0.0
- 6.0.1
- 6.1.0
- 6.2.0
- 6.2.1
- 6.2.2
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Dec 2, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 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 1, 2026 | 86.78% (0.86780) | 99.74th | v5 (v2026.06.15) |
| Sep 22, 2026 | 86.78% (0.86780) | 99.73th | v5 (v2026.06.15) |
| Sep 21, 2026 | 73.05% (0.73046) | 99.44th | v5 (v2026.06.15) |
| Sep 6, 2026 | 86.78% (0.86780) | 99.73th | v5 (v2026.06.15) |
| Sep 5, 2026 | 73.05% (0.73046) | 99.43th | v5 (v2026.06.15) |
| Aug 30, 2026 | 86.78% (0.86780) | 99.73th | v5 (v2026.06.15) |
| Aug 28, 2026 | 73.05% (0.73046) | 99.43th | v5 (v2026.06.15) |
| Aug 24, 2026 | 86.78% (0.86780) | 99.73th | v5 (v2026.06.15) |
| Aug 23, 2026 | 73.05% (0.73046) | 99.43th | v5 (v2026.06.15) |
| Jun 15, 2026 | 87.40% (0.87397) | 99.73th | v5 (v2026.06.15) |
| Jan 18, 2026 | 92.73% (0.92728) | 99.74th | v4 (v2025.03.14) |
| Jan 4, 2026 | 91.64% (0.91639) | 99.66th | v4 (v2025.03.14) |
| Jan 1, 2026 | 87.91% (0.87914) | 99.46th | v4 (v2025.03.14) |
| Dec 4, 2025 | 91.72% (0.91715) | 99.66th | v4 (v2025.03.14) |
| Dec 1, 2025 | 88.09% (0.88088) | 99.46th | v4 (v2025.03.14) |
| Nov 21, 2025 | 91.41% (0.91410) | 99.64th | v4 (v2025.03.14) |
| Nov 18, 2025 | 89.85% (0.89847) | 99.66th | v4 (v2025.03.14) |
| Nov 4, 2025 | 92.39% (0.92394) | 99.71th | v4 (v2025.03.14) |
| Nov 1, 2025 | 89.65% (0.89649) | 99.54th | v4 (v2025.03.14) |
| Oct 4, 2025 | 91.41% (0.91410) | 99.65th | v4 (v2025.03.14) |
| Oct 1, 2025 | 87.39% (0.87385) | 99.43th | v4 (v2025.03.14) |
| Sep 4, 2025 | 90.80% (0.90797) | 99.61th | v4 (v2025.03.14) |
| Sep 1, 2025 | 85.98% (0.85978) | 99.36th | v4 (v2025.03.14) |
| Aug 6, 2025 | 90.93% (0.90932) | 99.61th | v4 (v2025.03.14) |
| Aug 1, 2025 | 86.29% (0.86286) | 99.37th | v4 (v2025.03.14) |
| Jul 4, 2025 | 90.93% (0.90932) | 99.61th | v4 (v2025.03.14) |
| Jul 1, 2025 | 86.29% (0.86286) | 99.36th | v4 (v2025.03.14) |
| Jun 7, 2025 | 90.93% (0.90932) | 99.61th | v4 (v2025.03.14) |
| Jun 1, 2025 | 86.29% (0.86286) | 99.36th | v4 (v2025.03.14) |
| May 4, 2025 | 90.93% (0.90932) | 99.59th | v4 (v2025.03.14) |
| May 2, 2025 | 85.93% (0.85932) | 99.33th | v4 (v2025.03.14) |
| May 1, 2025 | 87.35% (0.87347) | 99.41th | v4 (v2025.03.14) |
| Apr 9, 2025 | 90.65% (0.90646) | 99.61th | v4 (v2025.03.14) |
| Apr 8, 2025 | 87.35% (0.87347) | 99.42th | v4 (v2025.03.14) |
| Mar 28, 2025 | 90.65% (0.90646) | 99.60th | v4 (v2025.03.14) |
| Mar 27, 2025 | 86.85% (0.86851) | 99.38th | v4 (v2025.03.14) |
| Mar 23, 2025 | 90.65% (0.90646) | 99.60th | v4 (v2025.03.14) |
| Mar 22, 2025 | 88.03% (0.88028) | 99.48th | v4 (v2025.03.14) |
| Mar 17, 2025 | 89.94% (0.89945) | 99.56th | v4 (v2025.03.14) |
| Dec 12, 2024 | 93.26% (0.93260) | 99.18th | v3 (v2023.03.01) |
| Jan 9, 2024 | 94.16% (0.94157) | 98.99th | v3 (v2023.03.01) |
| Dec 9, 2023 | 94.86% (0.94859) | 99.09th | v3 (v2023.03.01) |
| Oct 15, 2023 | 95.85% (0.95847) | 99.24th | v3 (v2023.03.01) |
| Aug 25, 2023 | 95.77% (0.95774) | 99.18th | v3 (v2023.03.01) |
| Aug 1, 2023 | 95.64% (0.95638) | 99.13th | v3 (v2023.03.01) |
| Jul 13, 2023 | 95.75% (0.95749) | 99.14th | v3 (v2023.03.01) |
| Jun 22, 2023 | 96.24% (0.96244) | 99.27th | v3 (v2023.03.01) |
| Apr 5, 2023 | 96.32% (0.96321) | 99.23th | v3 (v2023.03.01) |
| Mar 7, 2023 | 96.43% (0.96428) | 99.23th | v3 (v2023.03.01) |
| Mar 6, 2023 | 57.61% (0.57609) | 98.85th | v2 (v2022.01.01) |
| Feb 4, 2022 | 57.61% (0.57609) | 98.51th | v2 (v2022.01.01) |
| Feb 3, 2022 | 13.49% (0.13495) | 89.09th | v1 |
| Jan 6, 2022 | 13.49% (0.13495) | 88.96th | v1 |
| Sep 1, 2021 | 13.49% (0.13495) | 96.02th | v1 |
| Apr 14, 2021 | 13.49% (0.13495) | 0.00th | v1 |
References (6)
- http://www.securityfocus.com/bid/102845 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040292 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://icanthackit.wordpress.com/2018/01/30/thoughts-on-the-handling-cve-2018-0101-cisco-bug-cscvg35618/ x_refsource_MISCThird Party Advisory
- https://pastebin.com/YrBcG2Ln x_refsource_MISCExploitThird Party Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180129-asa1 x_refsource_CONFIRMVendor Advisory
- https://www.exploit-db.com/exploits/43986/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/102845 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040292 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://icanthackit.wordpress.com/2018/01/30/thoughts-on-the-handling-cve-2018-0101-cisco-bug-cscvg35618/ | x_refsource_MISCThird Party Advisory | |
| https://pastebin.com/YrBcG2Ln | x_refsource_MISCExploitThird Party Advisory | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180129-asa1 | x_refsource_CONFIRMVendor Advisory | |
| https://www.exploit-db.com/exploits/43986/ | exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.