The Puppet Communications Protocol (PCP) Broker incorrectly validates message header sizes
Published Feb 8, 2017
5.3
MEDIUMCVSS 3.0
EPSS 1.27%
Description
The Puppet Communications Protocol (PCP) Broker incorrectly validates message header sizes. An attacker could use this to crash the PCP Broker, preventing commands from being sent to agents. This is resolved in Puppet Enterprise 2016.4.3 and 2016.5.2.
Affected products
-
- Version 2015.3.xStatusaffectedConstraints-
- Version 2016.5.1.StatusaffectedConstraints-
- Version 2016.x prior to 2016.4.3StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Puppet | Puppet Enterprise | n/a |
|
- ≥ 2016.4.0 · < 2016.4.3
- 2016.5.1
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:N/I:N/A:L
AV:N/AC:L/Au:N/C:N/I:N/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 | 1.27% (0.01275) | 68.87th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.27% (0.01275) | 66.03th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.52% (0.00522) | 64.95th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.10% (0.00105) | 44.58th | v3 (v2023.03.01) |
| Oct 22, 2023 | 0.10% (0.00105) | 42.45th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00093) | 38.13th | 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) |
References (1)
- https://puppet.com/security/cve/cve-2016-9686 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://puppet.com/security/cve/cve-2016-9686 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.