CVE-2024-39543
Junos OS and Junos OS Evolved: Receipt of a large RPKI-RTR PDU packet can cause rpd to crash
A Buffer Copy without Checking Size of Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to send specific RPKI-RTR packets resulting in a crash, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue affects
Junos OS:
- All versions before 21.2R3-S8,
- from 21.4 before 21.4R3-S8,
- from 22.2 before 22.2R3-S4,
- from 22.3 before 22.3R3-S3,
- from 22.4 before 22.4R3-S2,
- from 23.2 before 23.2R2-S1,
- from 23.4 before 23.4R2.
Junos OS Evolved: * All versions before 21.2R3-S8-EVO,
- from 21.4 before 21.4R3-S8-EVO,
- from 22.2 before 22.2R3-S4-EVO,
- from 22.3 before 22.3R3-S3-EVO,
- from 22.4 before 22.4R3-S2-EVO,
- from 23.2 before 23.2R2-S1-EVO,
- from 23.4 before 23.4R2-EVO.
Attack profile
How easy it is to exploit
- Attack vector
- Adjacent network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Junos OS and Junos OS Evolved: Receipt of a large RPKI-RTR PDU packet can cause rpd to crash
A Buffer Copy without Checking Size of Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to send specific RPKI-RTR packets resulting in a crash, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue affects
Junos OS:
- All versions before 21.2R3-S8,
- from 21.4 before 21.4R3-S8,
- from 22.2 before 22.2R3-S4,
- from 22.3 before 22.3R3-S3,
- from 22.4 before 22.4R3-S2,
- from 23.2 before 23.2R2-S1,
- from 23.4 before 23.4R2.
Junos OS Evolved: * All versions before 21.2R3-S8-EVO,
- from 21.4 before 21.4R3-S8-EVO,
- from 22.2 before 22.2R3-S4-EVO,
- from 22.3 before 22.3R3-S3-EVO,
- from 22.4 before 22.4R3-S2-EVO,
- from 23.2 before 23.2R2-S1-EVO,
- from 23.4 before 23.4R2-EVO.
- Record
CVE-2024-39543- CVSS 4.0
- 7.1 High
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/R:A - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
EUVDEUVD-2024-38069
A Buffer Copy without Checking Size of Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to send specific RPKI-RTR packets resulting in a crash, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue affects
Junos OS:
- All versions before 21.2R3-S8,
- from 21.4 before 21.4R3-S8,
- from 22.2 before 22.2R3-S4,
- from 22.3 before 22.3R3-S3,
- from 22.4 before 22.4R3-S2,
- from 23.2 before 23.2R2-S1,
- from 23.4 before 23.4R2.
Junos OS Evolved: * All versions before 21.2R3-S8-EVO,
- from 21.4 before 21.4R3-S8-EVO,
- from 22.2 before 22.2R3-S4-EVO,
- from 22.3 before 22.3R3-S3-EVO,
- from 22.4 before 22.4R3-S2-EVO,
- from 23.2 before 23.2R2-S1-EVO,
- from 23.4 before 23.4R2-EVO.
- Record
EUVD-2024-38069- CVSS 4.0
- 7.1 High
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/R:A - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jgqx-5mhh-hg95
A Buffer Copy without Checking Size of Input vulnerability in the routing protocol daemon (rpd)...
A Buffer Copy without Checking Size of Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to send specific RPKI-RTR packets resulting in a crash, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue affects
Junos OS:
- All versions before 21.2R3-S8,
- from 21.4 before 21.4R3-S8,
- from 22.2 before 22.2R3-S4,
- from 22.3 before 22.3R3-S3,
- from 22.4 before 22.4R3-S2,
- from 23.2 before 23.2R2-S1,
- from 23.4 before 23.4R2.
Junos OS Evolved: * All versions before 21.2R3-S8-EVO,
- from 21.4 before 21.4R3-S8-EVO,
- from 22.2 before 22.2R3-S4-EVO,
- from 22.3 before 22.3R3-S3-EVO,
- from 22.4 before 22.4R3-S2-EVO,
- from 23.2 before 23.2R2-S1-EVO,
- from 23.4 before 23.4R2-EVO.
- Record
GHSA-jgqx-5mhh-hg95- CVSS 4.0
- 7.1 High
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:A/V:X/RE:X/U:X - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
NVD
A Buffer Copy without Checking Size of Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to send specific RPKI-RTR packets resulting in a crash, creating a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue affects
Junos OS:
- All versions before 21.2R3-S8,
- from 21.4 before 21.4R3-S8,
- from 22.2 before 22.2R3-S4,
- from 22.3 before 22.3R3-S3,
- from 22.4 before 22.4R3-S2,
- from 23.2 before 23.2R2-S1,
- from 23.4 before 23.4R2.
Junos OS Evolved: * All versions before 21.2R3-S8-EVO,
- from 21.4 before 21.4R3-S8-EVO,
- from 22.2 before 22.2R3-S4-EVO,
- from 22.3 before 22.3R3-S3-EVO,
- from 22.4 before 22.4R3-S2-EVO,
- from 23.2 before 23.2R2-S1-EVO,
- from 23.4 before 23.4R2-EVO.
- Record
CVE-2024-39543- CVSS 4.0
- 7.1 High
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:A/V:X/RE:X/U:X - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-39543 is a high vulnerability (CVSS 7.1) in Juniper Junos, published July 11, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.33%, the 26th percentile. No source names a fixed version.