MEDIUM
gcc: Predictable randomness from std::random_device
Published Nov 17, 2015
5.0
MEDIUMCVSS 2.0
EPSS 2.94%
Description
The std::random_device class in libstdc++ in the GNU Compiler Collection (aka GCC) before 4.9.4 does not properly handle short reads from blocking sources, which makes it easier for context-dependent attackers to predict the random values via unspecified vectors.
Affected products
Remediation
No remediation recorded yet.
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.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.94% 0.02941
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02941
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 | 2.94% (0.02941) | 86.64th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.94% (0.02941) | 85.28th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.28% (0.00277) | 49.05th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.31% (0.00311) | 70.91th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.31% (0.00311) | 69.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.31% (0.00311) | 65.31th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
Weaknesses (2)
References (8)
- http://lists.opensuse.org/opensuse-updates/2015-11/msg00054.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-04/msg00052.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://www.securitytracker.com/id/1034375 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-5276 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1262846 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65142 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-5276
- https://www.cve.org/CVERecord?id=CVE-2015-5276
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-updates/2015-11/msg00054.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://lists.opensuse.org/opensuse-updates/2016-04/msg00052.html | vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory | |
| http://www.securitytracker.com/id/1034375 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2015-5276 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1262846 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65142 | x_refsource_CONFIRMIssue TrackingVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-5276 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-5276 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Nov 17, 2015
Updated Aug 6, 2024
Reserved Jul 1, 2015
Link CVE-2015-5276
CISA Vulnrichment
Updated n/a