OpenWrt mishandles access control in /etc/config/rpcd and the /usr/share/rpcd/acl.d files, which allows remote authenticated users to call arbitrary methods (i.e., achieve ubus access over HTTP) that were only supposed to be accessible to a specific user, as demonstrated by the file, log, and service namespaces, potentially leading to remote Information Disclosure or Code Execution
Published Jun 19, 2018
8.8
HIGHCVSS 3.1
EPSS 2.44%
Description
OpenWrt mishandles access control in /etc/config/rpcd and the /usr/share/rpcd/acl.d files, which allows remote authenticated users to call arbitrary methods (i.e., achieve ubus access over HTTP) that were only supposed to be accessible to a specific user, as demonstrated by the file, log, and service namespaces, potentially leading to remote Information Disclosure or Code Execution. NOTE: The developer disputes this as a vulnerability, indicating that rpcd functions appropriately
Affected products
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:S/C:P/I:P/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Apr 23, 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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.44% (0.02436) | 83.71th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.44% (0.02436) | 82.09th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.65% (0.01645) | 80.28th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.49% (0.05489) | 83.31th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.65% (0.01645) | 80.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.25% (0.00248) | 65.29th | v3 (v2023.03.01) |
| Jul 4, 2024 | 0.27% (0.00267) | 67.91th | v3 (v2023.03.01) |
| Apr 28, 2024 | 0.24% (0.00235) | 61.20th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.23% (0.00230) | 59.38th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.98% (0.01978) | 79.27th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.98% (0.01978) | 77.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.98% (0.01978) | 56.34th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.37% (0.01374) | 32.00th | v1 |
| Jan 6, 2022 | 1.37% (0.01374) | 31.26th | v1 |
| Sep 1, 2021 | 1.37% (0.01374) | 70.79th | v1 |
| Apr 14, 2021 | 1.37% (0.01374) | 0.00th | v1 |
References (2)
- http://blog.hac425.top/2018/05/16/openwrt_rpcd_acl_fail.html x_refsource_MISCThird Party Advisory
- https://forum.openwrt.org/t/rpcd-vulnerability-reported-on-vultdb/16497/3 x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| http://blog.hac425.top/2018/05/16/openwrt_rpcd_acl_fail.html | x_refsource_MISCThird Party Advisory | |
| https://forum.openwrt.org/t/rpcd-vulnerability-reported-on-vultdb/16497/3 | x_refsource_MISC |
Change history (0)
No recorded changes yet.