In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p7, 10.4-STABLE, 10.4-RELEASE-p7, and 10.3-RELEASE-p28, the kernel does not properly validate IPsec packets coming from a trusted host
Published Mar 9, 2018
9.8
CRITICALCVSS 3.0
EPSS 2.09%
Description
In FreeBSD before 11.1-STABLE, 11.1-RELEASE-p7, 10.4-STABLE, 10.4-RELEASE-p7, and 10.3-RELEASE-p28, the kernel does not properly validate IPsec packets coming from a trusted host. Additionally, a use-after-free vulnerability exists in the IPsec AH handling code. This issue could cause a system crash or other unpredictable results.
Affected products
-
- Version All supported versions of FreeBSDStatusaffectedConstraints-
- Version
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:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:P/I:P/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
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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.09% (0.02086) | 80.88th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.20% (0.02204) | 80.17th | v5 (v2026.06.15) |
| Jul 28, 2025 | 0.52% (0.00518) | 65.76th | v4 (v2025.03.14) |
| Mar 30, 2025 | 1.60% (0.01604) | 80.04th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.73% (0.02733) | 76.57th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.22% (0.00220) | 60.41th | v3 (v2023.03.01) |
| Jul 31, 2023 | 0.22% (0.00220) | 59.00th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.23% (0.00230) | 60.10th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.33% (0.00328) | 66.22th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v1 |
| Jan 6, 2022 | 0.62% (0.00624) | 17.24th | v1 |
| Sep 1, 2021 | 0.62% (0.00624) | 45.04th | v1 |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (2)
- http://www.securitytracker.com/id/1040460 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://www.freebsd.org/security/advisories/FreeBSD-SA-18:01.ipsec.asc vendor-advisoryx_refsource_FREEBSDPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securitytracker.com/id/1040460 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://www.freebsd.org/security/advisories/FreeBSD-SA-18:01.ipsec.asc | vendor-advisoryx_refsource_FREEBSDPatchVendor Advisory |
Change history (0)
No recorded changes yet.