Junos OS and Junos OS Evolved: A vulnerability in JDHCPD allows an attacker to send crafted IPv4 packets may take over the code execution of the JDHCPD process.
Published Jan 15, 2020
8.8
HIGHCVSS 3.1
EPSS 0.79%
Description
When a device using Juniper Network's Dynamic Host Configuration Protocol Daemon (JDHCPD) process on Junos OS or Junos OS Evolved which is configured in relay mode it vulnerable to an attacker sending crafted IPv4 packets who may remotely take over the code execution of the JDHDCP process. This issue affect IPv4 JDHCPD services. This issue affects: Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S6; 15.1X49 versions prior to 15.1X49-D200; 15.1X53 versions prior to 15.1X53-D592; 16.1 versions prior to 16.1R7-S6; 16.2 versions prior to 16.2R2-S11; 17.1 versions prior to 17.1R2-S11, 17.1R3-S1; 17.2 versions prior to 17.2R2-S8, 17.2R3-S3; 17.3 versions prior to 17.3R3-S6; 17.4 versions prior to 17.4R2-S7, 17.4R3; 18.1 versions prior to 18.1R3-S8; 18.2 versions prior to 18.2R3-S2; 18.2X75 versions prior to 18.2X75-D60; 18.3 versions prior to 18.3R1-S6, 18.3R2-S2, 18.3R3; 18.4 versions prior to 18.4R1-S5, 18.4R2-S3, 18.4R3; 19.1 versions prior to 19.1R1-S3, 19.1R2; 19.2 versions prior to 19.2R1-S3, 19.2R2*. and All versions prior to 19.3R1 on Junos OS Evolved. This issue do not affect versions of Junos OS prior to 15.1, or JDHCPD operating as a local server in non-relay mode.
Affected products
-
- Version 15.1StatusaffectedConstraints<15.1R7-S6
- Version 15.1X49StatusaffectedConstraints<15.1X49-D200
- Version 15.1X53StatusaffectedConstraints<15.1X53-D592
- Version 16.1StatusaffectedConstraints<16.1R7-S6
- Version 16.2StatusaffectedConstraints<16.2R2-S11
- Version 17.1StatusaffectedConstraints<17.1R2-S11, 17.1R3-S1
- Version 17.2StatusaffectedConstraints<17.2R2-S8, 17.2R3-S3
- Version 17.3StatusaffectedConstraints<17.3R3-S6
- Version 17.4StatusaffectedConstraints<17.4R2-S7, 17.4R3
- Version 18.1StatusaffectedConstraints<18.1R3-S8
- Version 18.2StatusaffectedConstraints<18.2R3-S2
- Version 18.2X75StatusaffectedConstraints<18.2X75-D60
- Version 18.3StatusaffectedConstraints<18.3R1-S6, 18.3R2-S2, 18.3R3
- Version 18.4StatusaffectedConstraints<18.4R1-S5, 18.4R2-S3, 18.4R3
- Version 19.1StatusaffectedConstraints<19.1R1-S3, 19.1R2
- Version 19.2StatusaffectedConstraints<19.2R1-S3, 19.2R2
- Version 19.3StatusaffectedConstraints<19.3R1, 19.3R2
- Version
-
- Version unspecifiedStatusaffectedConstraints<19.3R1
- 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 |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Juniper Networks | Junos OS Evolved | n/a |
|
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 15.1x49
- 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
- 15.1x53
- 16.1
- 16.1
- 16.1
- 16.1
- 16.1
- 16.1
- 16.1
- 16.1
- 16.1
- 16.1
- 16.1
- 16.2
- 16.2
- 16.2
- 16.2
- 16.2
- 16.2
- 16.2
- 16.2
- 16.2
- 16.2
- 17.1
- 17.1
- 17.1
- 17.1
- 17.1
- 17.1
- 17.1
- 17.1
- 17.1
- 17.1
- 17.1
- 17.2
- 17.2
- 17.2
- 17.2
- 17.2
- 17.2
- 17.2
- 17.2
- 17.2
- 17.3
- 17.3
- 17.3
- 17.3
- 17.3
- 17.3
- 17.3
- 17.3
- 17.3
- 17.3
- 17.4
- 17.4
- 17.4
- 17.4
- 17.4
- 17.4
- 17.4
- 17.4
- 17.4
- 17.4
- 17.4
- 17.4
- 17.4
- 18.1
- 18.1
- 18.1
- 18.2
- 18.2
- 18.2
- 18.2
- 18.2
- 18.2
- 18.2
- 18.2
- 18.2x75
- 18.2x75
- 18.2x75
- 18.3
- 18.3
- 18.3
- 18.3
- 18.3
- 18.3
- 18.3
- 18.3
- 18.4
- 18.4
- 18.4
- 18.4
- 18.4
- 18.4
- 18.4
- 19.1
- 19.1
- 19.1
- 19.2
- 19.2
- 19.2
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: Junos OS: 15.1R7-S6, 15.1X49-D200, 15.1X53-D592, 16.1R7-S6, 16.2R2-S11, 17.1R2-S11, 17.1R3-S1, 17.2R2-S8, 17.2R3-S3, 17.3R3-S6, 17.4R2-S7, 17.4R3, 18.1R3-S8, 18.2R3-S2, 18.2X75-D60, 18.3R1-S6, 18.3R2-S2, 18.3R3, 18.4R1-S5, 18.4R2-S3, 18.4R3, 19.1R1-S3, 19.1R2, 19.2R1-S3, 19.2R2*, 19.3R1, and all subsequent releases.
Junos OS Evolved: 19.3R1, and all subsequent releases.
*pending publication
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
1 other source (CVE.org) ▾
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
No CVSS v3.0 score for this CVE.
AV:A/AC:L/Au:N/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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.79% (0.00787) | 54.58th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.79% (0.00787) | 54.63th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.10% (0.00100) | 41.75th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.10% (0.00100) | 41.71th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00100) | 39.70th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.00% (0.01005) | 38.10th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.00% (0.01005) | 34.40th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.68% (0.02683) | 62.15th | v2 (v2022.01.01) |
| Feb 3, 2022 | 4.73% (0.04733) | 77.72th | v1 |
| Jan 6, 2022 | 4.73% (0.04733) | 77.51th | v1 |
| Jan 5, 2022 | 1.09% (0.01095) | 67.13th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.09% (0.01095) | 0.00th | v1 |
References (2)
- https://kb.juniper.net/JSA10981 x_refsource_CONFIRMVendor Advisory
- https://prsearch.juniper.net/InfoCenter/index?page=prcontent&id=PR1449353 x_refsource_MISCPermissions Required
| Link | Providers | Tags |
|---|---|---|
| https://kb.juniper.net/JSA10981 | x_refsource_CONFIRMVendor Advisory | |
| https://prsearch.juniper.net/InfoCenter/index?page=prcontent&id=PR1449353 | x_refsource_MISCPermissions Required |
Change history (0)
No recorded changes yet.