radvd: daemon would not fail on privsep_init() causing it to run with full root privileges
Published Apr 27, 2014
4.4
MEDIUMCVSS 2.0
EPSS 0.36%
Description
The router advertisement daemon (radvd) before 1.8.2 does not properly handle errors in the privsep_init function, which causes the radvd daemon to run as root and has an unspecified impact.
Affected products
No data.
- ≤ 1.8.1
No data.
Red Hat Enterprise Linux 4
radvd
Not affected
Red Hat Enterprise Linux 5
radvd
Not affected
Red Hat Enterprise Linux 6
radvd
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | radvd | Not affected | n/a |
| Red Hat Enterprise Linux 5 | radvd | Not affected | n/a |
| Red Hat Enterprise Linux 6 | radvd | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
A failure in privsep_init() does not cause radvd to run with full root privileges when invoked with the --username option specifying an unprivileged user. Rather it will run as a single process as the specified (unprivileged) radvd user, causing this issue to have no security impact (no unintended privilege elevation).
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:L/AC:M/Au:N/C:P/I:P/A:P
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.36% (0.00359) | 27.27th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.36% (0.00356) | 27.23th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00063) | 16.79th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.13% (0.00132) | 49.89th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.13% (0.00132) | 48.49th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.13% (0.00132) | 46.45th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
References (6)
- http://www.litech.org/radvd/CHANGES x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2011/10/06/3 mailing-listx_refsource_MLIST
- https://access.redhat.com/security/cve/CVE-2011-3603 x_refsource_MISCVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=743752 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2011-3603
- https://www.cve.org/CVERecord?id=CVE-2011-3603
| Link | Providers | Tags |
|---|---|---|
| http://www.litech.org/radvd/CHANGES | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2011/10/06/3 | mailing-listx_refsource_MLIST | |
| https://access.redhat.com/security/cve/CVE-2011-3603 | x_refsource_MISCVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=743752 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-3603 | ||
| https://www.cve.org/CVERecord?id=CVE-2011-3603 |
Change history (0)
No recorded changes yet.