CVE-2024-39516
Junos OS and Junos OS Evolved: With certain BGP options enabled, receipt of specifically malformed BGP update causes RPD crash
An Out-of-Bounds Read vulnerability in
the routing protocol daemon (rpd) of
Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue only affects systems configured in either of two ways:
* systems with BGP traceoptions enabled
* systems with BGP traffic engineering
configured
This issue can affect iBGP and eBGP with
any address family
configured. The specific attribute involved is non-transitive, and will not propagate across a network.
This issue affects:
Junos OS:
- All versions before 21.4R3-S8,
- 22.2 before 22.2R3-S5,
- 22.3 before 22.3R3-S4,
- 22.4 before 22.4R3-S3,
- 23.2 before 23.2R2-S2,
- 23.4 before 23.4R2;
Junos OS Evolved:
- All versions before 21.4R3-S8-EVO,
- 22.2-EVO before 22.2R3-S5-EVO,
- 22.3-EVO before 22.3R3-S4-EVO,
- 22.4-EVO before 22.4R3-S3-EVO,
- 23.2-EVO before 23.2R2-S2-EVO,
- 23.4-EVO before 23.4R2-EVO.
Attack profile
How easy it is to exploit
- Attack vector
- 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: With certain BGP options enabled, receipt of specifically malformed BGP update causes RPD crash
An Out-of-Bounds Read vulnerability in
the routing protocol daemon (rpd) of
Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue only affects systems configured in either of two ways:
* systems with BGP traceoptions enabled
* systems with BGP traffic engineering
configured
This issue can affect iBGP and eBGP with
any address family
configured. The specific attribute involved is non-transitive, and will not propagate across a network.
This issue affects:
Junos OS:
- All versions before 21.4R3-S8,
- 22.2 before 22.2R3-S5,
- 22.3 before 22.3R3-S4,
- 22.4 before 22.4R3-S3,
- 23.2 before 23.2R2-S2,
- 23.4 before 23.4R2;
Junos OS Evolved:
- All versions before 21.4R3-S8-EVO,
- 22.2-EVO before 22.2R3-S5-EVO,
- 22.3-EVO before 22.3R3-S4-EVO,
- 22.4-EVO before 22.4R3-S3-EVO,
- 23.2-EVO before 23.2R2-S2-EVO,
- 23.4-EVO before 23.4R2-EVO.
- Record
CVE-2024-39516- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
EUVDEUVD-2024-38042
An Out-of-Bounds Read vulnerability in
the routing protocol daemon (rpd) of
Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue only affects systems configured in either of two ways:
* systems with BGP traceoptions enabled
* systems with BGP traffic engineering
configured
This issue can affect iBGP and eBGP with
any address family
configured. The specific attribute involved is non-transitive, and will not propagate across a network.
This issue affects:
Junos OS:
- All versions before 21.4R3-S8,
- 22.2 before 22.2R3-S5,
- 22.3 before 22.3R3-S4,
- 22.4 before 22.4R3-S3,
- 23.2 before 23.2R2-S2,
- 23.4 before 23.4R2;
Junos OS Evolved:
- All versions before 21.4R3-S8-EVO,
- 22.2-EVO before 22.2R3-S5-EVO,
- 22.3-EVO before 22.3R3-S4-EVO,
- 22.4-EVO before 22.4R3-S3-EVO,
- 23.2-EVO before 23.2R2-S2-EVO,
- 23.4-EVO before 23.4R2-EVO.
- Record
EUVD-2024-38042- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qr97-x53q-9m8f
An Out-of-Bounds Read vulnerability in the routing protocol daemon (rpd) of Juniper Networks...
An Out-of-Bounds Read vulnerability in
the routing protocol daemon (rpd) of
Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue only affects systems with BGP traceoptions enabled. Systems without BGP traceoptions enabled are not affected by this issue.
This issue affects iBGP and eBGP with
any address family
configured.
This issue affects:
Junos OS:
- All versions before 21.4R3-S8,
- 22.2 before 22.2R3-S5,
- 22.3 before 22.3R3-S4,
- 22.4 before 22.4R3-S3,
- 23.2 before 23.2R2-S2,
- 23.4 before 23.4R2;
Junos OS Evolved:
- All versions before 21.4R3-S8-EVO,
- 22.2-EVO before 22.2R3-S5-EVO,
- 22.3-EVO before 22.3R3-S4-EVO,
- 22.4-EVO before 22.4R3-S3-EVO,
- 23.2-EVO before 23.2R2-S2-EVO,
- 23.4-EVO before 23.4R2-EVO.
- Record
GHSA-qr97-x53q-9m8f- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/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:X/V:X/RE:X/U:X - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-125
- Updated
- 2026-11-02
NVD
An Out-of-Bounds Read vulnerability in
the routing protocol daemon (rpd) of
Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue only affects systems configured in either of two ways:
* systems with BGP traceoptions enabled
* systems with BGP traffic engineering
configured
This issue can affect iBGP and eBGP with
any address family
configured. The specific attribute involved is non-transitive, and will not propagate across a network.
This issue affects:
Junos OS:
- All versions before 21.4R3-S8,
- 22.2 before 22.2R3-S5,
- 22.3 before 22.3R3-S4,
- 22.4 before 22.4R3-S3,
- 23.2 before 23.2R2-S2,
- 23.4 before 23.4R2;
Junos OS Evolved:
- All versions before 21.4R3-S8-EVO,
- 22.2-EVO before 22.2R3-S5-EVO,
- 22.3-EVO before 22.3R3-S4-EVO,
- 22.4-EVO before 22.4R3-S3-EVO,
- 23.2-EVO before 23.2R2-S2-EVO,
- 23.4-EVO before 23.4R2-EVO.
- Record
CVE-2024-39516- CVSS 4.0
- 8.7 High
CVSS:4.0/AV:N/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:X/V:X/RE:X/U:X - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-125
- 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-2024-39516 is a high vulnerability (CVSS 8.7) in Juniper Junos, published October 9, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. No source names a fixed version.