CRITICAL
In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error when handling opcodes can cause memory corruption by sending a specially crafted NFSv4 request
Published Dec 4, 2018
9.8
CRITICALCVSS 3.0
EPSS 24.17%
Description
In FreeBSD before 11.2-STABLE(r340854) and 11.2-RELEASE-p5, an integer overflow error when handling opcodes can cause memory corruption by sending a specially crafted NFSv4 request. Unprivileged remote users with access to the NFS server may be able to execute arbitrary code.
Affected products
-
- Version FreeBSD 11.2 before 11.2-RELEASE-p5StatusaffectedConstraints-
- 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.
9.8 CRITICAL NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
10.0 HIGH NVD
AV:N/AC:L/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
24.17% 0.24168
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.24168
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 (33 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 24.17% (0.24168) | 97.79th | v5 (v2026.06.15) |
| Sep 22, 2026 | 24.17% (0.24168) | 97.75th | v5 (v2026.06.15) |
| Sep 21, 2026 | 20.57% (0.20572) | 97.45th | v5 (v2026.06.15) |
| Sep 6, 2026 | 24.17% (0.24168) | 97.69th | v5 (v2026.06.15) |
| Sep 5, 2026 | 20.57% (0.20572) | 97.40th | v5 (v2026.06.15) |
| Aug 30, 2026 | 24.17% (0.24168) | 97.68th | v5 (v2026.06.15) |
| Aug 28, 2026 | 20.57% (0.20572) | 97.38th | v5 (v2026.06.15) |
| Aug 24, 2026 | 24.17% (0.24168) | 97.67th | v5 (v2026.06.15) |
| Aug 23, 2026 | 20.57% (0.20572) | 97.38th | v5 (v2026.06.15) |
| Jun 15, 2026 | 24.17% (0.24168) | 97.56th | v5 (v2026.06.15) |
| Nov 21, 2025 | 12.12% (0.12118) | 93.52th | v4 (v2025.03.14) |
| Nov 18, 2025 | 39.04% (0.39044) | 97.10th | v4 (v2025.03.14) |
| Aug 2, 2025 | 12.73% (0.12729) | 93.75th | v4 (v2025.03.14) |
| Apr 30, 2025 | 53.03% (0.53026) | 97.78th | v4 (v2025.03.14) |
| Mar 30, 2025 | 43.32% (0.43320) | 97.23th | v4 (v2025.03.14) |
| Mar 29, 2025 | 49.74% (0.49745) | 96.80th | v4 (v2025.03.14) |
| Mar 17, 2025 | 43.32% (0.43320) | 97.19th | v4 (v2025.03.14) |
| Dec 17, 2024 | 8.52% (0.08520) | 94.43th | v3 (v2023.03.01) |
| Nov 13, 2024 | 34.42% (0.34416) | 97.21th | v3 (v2023.03.01) |
| Oct 13, 2024 | 38.04% (0.38036) | 97.28th | v3 (v2023.03.01) |
| Sep 18, 2024 | 48.83% (0.48832) | 97.54th | v3 (v2023.03.01) |
| Jun 5, 2024 | 52.21% (0.52213) | 97.52th | v3 (v2023.03.01) |
| Apr 26, 2024 | 53.10% (0.53095) | 97.57th | v3 (v2023.03.01) |
| Nov 28, 2023 | 51.49% (0.51493) | 97.23th | v3 (v2023.03.01) |
| Apr 17, 2023 | 50.86% (0.50863) | 96.98th | v3 (v2023.03.01) |
| Mar 7, 2023 | 51.53% (0.51530) | 96.95th | v3 (v2023.03.01) |
| Mar 6, 2023 | 5.63% (0.05634) | 90.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 5.63% (0.05634) | 89.29th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.63% (0.05634) | 76.84th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.87% (0.01867) | 48.06th | v1 |
| Jan 6, 2022 | 1.87% (0.01867) | 47.55th | v1 |
| Sep 1, 2021 | 1.87% (0.01867) | 76.14th | v1 |
| Apr 14, 2021 | 1.87% (0.01867) | 0.00th | v1 |
Weaknesses (1)
References (4)
- http://www.securityfocus.com/bid/106192 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1042164 vdb-entryx_refsource_SECTRACKPatchThird Party AdvisoryVDB Entry
- https://secuniaresearch.flexerasoftware.com/secunia_research/2018-25/ x_refsource_MISCThird Party Advisory
- https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc vendor-advisoryx_refsource_FREEBSDPatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/106192 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1042164 | vdb-entryx_refsource_SECTRACKPatchThird Party AdvisoryVDB Entry | |
| https://secuniaresearch.flexerasoftware.com/secunia_research/2018-25/ | x_refsource_MISCThird Party Advisory | |
| https://security.freebsd.org/advisories/FreeBSD-SA-18:13.nfs.asc | vendor-advisoryx_refsource_FREEBSDPatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner freebsd
Published Dec 4, 2018
Updated Aug 5, 2024
Reserved Sep 18, 2018
Link CVE-2018-17157
CISA Vulnrichment
Updated n/a