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CVE-2023-44185

Junos OS and Junos OS Evolved: In an BGP scenario RPD crashes upon receiving and processing a specific malformed ISO VPN BGP UPDATE packet

7.5 High

An Improper Input Validation vulnerability in the routing protocol daemon (rpd) of Juniper Networks allows an attacker to cause a Denial of Service (DoS )to the device upon receiving and processing a specific malformed ISO VPN BGP UPDATE packet.

Continued receipt of this packet will cause a sustained Denial of Service condition.

This issue affects:

  • Juniper Networks Junos OS:
  • All versions prior to 20.4R3-S6;
  • 21.1 versions prior to 21.1R3-S5;
  • 21.2 versions prior to 21.2R3-S4;
  • 21.3 versions prior to 21.3R3-S3;
  • 21.4 versions prior to 21.4R3-S3;
  • 22.1 versions prior to 22.1R2-S2, 22.1R3;
  • 22.2 versions prior to 22.2R2-S1, 22.2R3;
  • 22.3 versions prior to 22.3R1-S2, 22.3R2.

Juniper Networks Junos OS Evolved:

  • All versions prior to 20.4R3-S6-EVO;
  • 21.1-EVO version 21.1R1-EVO and later versions prior to 21.2R3-S4-EVO;
  • 21.3-EVO versions prior to 21.3R3-S3-EVO;
  • 21.4-EVO versions prior to 21.4R3-S3-EVO;
  • 22.1-EVO versions prior to 22.1R3-EVO;
  • 22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO;
  • 22.3-EVO versions prior to 22.3R1-S2-EVO, 22.3R2-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

0.62%Up 0.6 points since Oct 13, 2023
90%50%10%1%

What each source reports

CVE List Score used 7.5

Junos OS and Junos OS Evolved: In an BGP scenario RPD crashes upon receiving and processing a specific malformed ISO VPN BGP UPDATE packet

An Improper Input Validation vulnerability in the routing protocol daemon (rpd) of Juniper Networks allows an attacker to cause a Denial of Service (DoS )to the device upon receiving and processing a specific malformed ISO VPN BGP UPDATE packet.

Continued receipt of this packet will cause a sustained Denial of Service condition.

This issue affects:

  • Juniper Networks Junos OS:
  • All versions prior to 20.4R3-S6;
  • 21.1 versions prior to 21.1R3-S5;
  • 21.2 versions prior to 21.2R3-S4;
  • 21.3 versions prior to 21.3R3-S3;
  • 21.4 versions prior to 21.4R3-S3;
  • 22.1 versions prior to 22.1R2-S2, 22.1R3;
  • 22.2 versions prior to 22.2R2-S1, 22.2R3;
  • 22.3 versions prior to 22.3R1-S2, 22.3R2.

Juniper Networks Junos OS Evolved:

  • All versions prior to 20.4R3-S6-EVO;
  • 21.1-EVO version 21.1R1-EVO and later versions prior to 21.2R3-S4-EVO;
  • 21.3-EVO versions prior to 21.3R3-S3-EVO;
  • 21.4-EVO versions prior to 21.4R3-S3-EVO;
  • 22.1-EVO versions prior to 22.1R3-EVO;
  • 22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO;
  • 22.3-EVO versions prior to 22.3R1-S2-EVO, 22.3R2-EVO.
Record
CVE-2023-44185
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-20
Updated
2026-11-02
EUVDEUVD-2023-48544 7.5

An Improper Input Validation vulnerability in the routing protocol daemon (rpd) of Juniper Networks allows an attacker to cause a Denial of Service (DoS )to the device upon receiving and processing a specific malformed ISO VPN BGP UPDATE packet.

Continued receipt of this packet will cause a sustained Denial of Service condition.

This issue affects:

  • Juniper Networks Junos OS:
  • All versions prior to 20.4R3-S6;
  • 21.1 versions prior to 21.1R3-S5;
  • 21.2 versions prior to 21.2R3-S4;
  • 21.3 versions prior to 21.3R3-S3;
  • 21.4 versions prior to 21.4R3-S3;
  • 22.1 versions prior to 22.1R2-S2, 22.1R3;
  • 22.2 versions prior to 22.2R2-S1, 22.2R3;
  • 22.3 versions prior to 22.3R1-S2, 22.3R2.

Juniper Networks Junos OS Evolved:

  • All versions prior to 20.4R3-S6-EVO;
  • 21.1-EVO version 21.1R1-EVO and later versions prior to 21.2R3-S4-EVO;
  • 21.3-EVO versions prior to 21.3R3-S3-EVO;
  • 21.4-EVO versions prior to 21.4R3-S3-EVO;
  • 22.1-EVO versions prior to 22.1R3-EVO;
  • 22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO;
  • 22.3-EVO versions prior to 22.3R1-S2-EVO, 22.3R2-EVO.
Record
EUVD-2023-48544
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-rvw9-8m2p-4pgm 7.5

An Improper Input Validation vulnerability in the routing protocol daemon (rpd) of Juniper...

An Improper Input Validation vulnerability in the routing protocol daemon (rpd) of Juniper Networks allows an attacker to cause a Denial of Service (DoS )to the device upon receiving and processing a specific malformed ISO VPN BGP UPDATE packet.

Continued receipt of this packet will cause a sustained Denial of Service condition.

This issue affects:

  • Juniper Networks Junos OS:
  • All versions prior to 20.4R3-S6;
  • 21.1 versions prior to 21.1R3-S5;
  • 21.2 versions prior to 21.2R3-S4;
  • 21.3 versions prior to 21.3R3-S3;
  • 21.4 versions prior to 21.4R3-S3;
  • 22.1 versions prior to 22.1R2-S2, 22.1R3;
  • 22.2 versions prior to 22.2R2-S1, 22.2R3;
  • 22.3 versions prior to 22.3R1-S2, 22.3R2.

Juniper Networks Junos OS Evolved:

  • All versions prior to 20.4R3-S6-EVO;
  • 21.1-EVO version 21.1R1-EVO and later versions prior to 21.2R3-S4-EVO;
  • 21.3-EVO versions prior to 21.3R3-S3-EVO;
  • 21.4-EVO versions prior to 21.4R3-S3-EVO;
  • 22.1-EVO versions prior to 22.1R3-EVO;
  • 22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO;
  • 22.3-EVO versions prior to 22.3R1-S2-EVO, 22.3R2-EVO.
Record
GHSA-rvw9-8m2p-4pgm
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-20
Updated
2026-11-02
NVD 7.5

An Improper Input Validation vulnerability in the routing protocol daemon (rpd) of Juniper Networks allows an attacker to cause a Denial of Service (DoS )to the device upon receiving and processing a specific malformed ISO VPN BGP UPDATE packet.

Continued receipt of this packet will cause a sustained Denial of Service condition.

This issue affects:

  • Juniper Networks Junos OS:
  • All versions prior to 20.4R3-S6;
  • 21.1 versions prior to 21.1R3-S5;
  • 21.2 versions prior to 21.2R3-S4;
  • 21.3 versions prior to 21.3R3-S3;
  • 21.4 versions prior to 21.4R3-S3;
  • 22.1 versions prior to 22.1R2-S2, 22.1R3;
  • 22.2 versions prior to 22.2R2-S1, 22.2R3;
  • 22.3 versions prior to 22.3R1-S2, 22.3R2.

Juniper Networks Junos OS Evolved:

  • All versions prior to 20.4R3-S6-EVO;
  • 21.1-EVO version 21.1R1-EVO and later versions prior to 21.2R3-S4-EVO;
  • 21.3-EVO versions prior to 21.3R3-S3-EVO;
  • 21.4-EVO versions prior to 21.4R3-S3-EVO;
  • 22.1-EVO versions prior to 22.1R3-EVO;
  • 22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO;
  • 22.3-EVO versions prior to 22.3R1-S2-EVO, 22.3R2-EVO.
Record
CVE-2023-44185
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-20
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-44185 is a high vulnerability (CVSS 7.5) in Juniper Junos, published October 12, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 49th percentile. No source names a fixed version.

References

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