Junos OS: Kernel crash upon receipt of crafted CLNP datagrams
Published Apr 11, 2018
9.8
CRITICALCVSS 3.0
EPSS 4.07%
Description
Receipt of a specially crafted Connectionless Network Protocol (CLNP) datagram destined to an interface of a Junos OS device may result in a kernel crash or lead to remote code execution. Devices are only vulnerable to the specially crafted CLNP datagram if 'clns-routing' or ES-IS is explicitly configured. Devices with without CLNS enabled are not vulnerable to this issue. Devices with IS-IS configured on the interface are not vulnerable to this issue unless CLNS routing is also enabled. This issue only affects devices running Junos OS 15.1. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1F5-S3, 15.1F6-S8, 15.1F7, 15.1R5; 15.1X49 versions prior to 15.1X49-D60; 15.1X53 versions prior to 15.1X53-D66, 15.1X53-D233, 15.1X53-D471. Earlier releases are unaffected by this vulnerability, and the issue has been resolved in Junos OS 16.1R1 and all subsequent releases.
Affected products
-
- Version 15.1StatusaffectedConstraints<15.1F5-S3, 15.1F6-S8, 15.1F7, 15.1R5
- Version 15.1X49StatusaffectedConstraints<15.1X49-D60
- Version 15.1X53StatusaffectedConstraints<15.1X53-D66, 15.1X53-D233, 15.1X53-D471
- 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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Juniper Networks | Junos OS | n/a |
|
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1f
- 15.1f2
- 15.1f3
- 15.1f4
- 15.1f5
- 15.1f5
- 15.1f6
- 15.1f6
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
- 15.1x53
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
The following software releases have been updated to resolve this specific issue: 15.1F5-S3, 15.1F6-S8, 15.1F7, 15.1R5, 15.1X49-D60, 15.1X53-D66, 15.1X53-D233, 15.1X53-D471, 16.1R1, and all subsequent releases.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
1 other source (CVE.org) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:S/C:C/I:C/A:C
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
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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.07% (0.04068) | 90.36th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.29% (0.04285) | 89.80th | v5 (v2026.06.15) |
| Nov 27, 2025 | 11.25% (0.11246) | 93.23th | v4 (v2025.03.14) |
| Jul 9, 2025 | 15.17% (0.15174) | 94.27th | v4 (v2025.03.14) |
| Mar 30, 2025 | 17.53% (0.17530) | 94.55th | v4 (v2025.03.14) |
| Mar 29, 2025 | 29.97% (0.29968) | 94.71th | v4 (v2025.03.14) |
| Mar 17, 2025 | 17.53% (0.17530) | 94.57th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.68% (0.00679) | 79.78th | v3 (v2023.03.01) |
| Feb 19, 2024 | 1.63% (0.01632) | 87.13th | v3 (v2023.03.01) |
| Sep 2, 2023 | 1.68% (0.01675) | 86.10th | v3 (v2023.03.01) |
| Apr 5, 2023 | 1.99% (0.01992) | 87.05th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.68% (0.01680) | 85.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.70% (0.04695) | 89.17th | v2 (v2022.01.01) |
| Jan 6, 2023 | 4.70% (0.04695) | 88.70th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.57% (0.04571) | 87.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.57% (0.04571) | 74.15th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.83% (0.01828) | 35.38th | v1 |
| Jan 6, 2022 | 1.83% (0.01828) | 34.69th | v1 |
| Sep 1, 2021 | 1.83% (0.01828) | 74.99th | v1 |
| Apr 14, 2021 | 1.83% (0.01828) | 0.00th | v1 |
No CWE recorded.
References (3)
- http://www.securityfocus.com/bid/103747 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040784 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://kb.juniper.net/JSA10844 x_refsource_CONFIRMMitigationVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/103747 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040784 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://kb.juniper.net/JSA10844 | x_refsource_CONFIRMMitigationVendor Advisory |
Change history (0)
No recorded changes yet.