TI-2025-37351 Aliases CVE-2025-59964 GHSA-8cjx-8cpv-m8fr

Use of uninitialized resource in Juniper Junos OS

MEDIUM 44CWE-908Published 2025-10-09 · Updated 2025-10-09

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-908 and the CVSS impact.

Summary

A Use of Uninitialized Resource vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on SRX4700 devices allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When forwarding-options sampling is enabled, receipt of any traffic destined to the Routing Engine (RE) by the PFE line card leads to an FPC crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of any traffic leading to the RE by the PFE line card will create a sustained Denial of Service (DoS) condition to the PFE line card. This issue affects Junos OS on SRX4700: * from 24.4 before 24.4R1-S3, 24.4R2 This issue affects IPv4 and IPv6.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00355 29th percentileScored 2026-11-08

Fix Fixed Junos OS (Juniper Networks): 24.4R1-S3, 24.4R2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Juniper	Junos OS	24.4 to before 24.4R1-S3, 24.4R2	24.4R1-S3, 24.4R2	Patch available	CNA

Junos OS VendorJuniper Affected 24.4 to before 24.4R1-S3, 24.4R2 Fixed in 24.4R1-S3, 24.4R2 Patch available CNA

CPE configurations NVD · 5

CPE	Versions	Role	Vendor
cpe:2.3:o:juniper:junos:24.4:-::::::	24.4	Vulnerable	Juniper
cpe:2.3:o:juniper:junos:24.4:r1::::::	24.4 r1	Vulnerable	Juniper
cpe:2.3:o:juniper:junos:24.4:r1-s2::::::	24.4 r1-s2	Vulnerable	Juniper
cpe:2.3:o:juniper:junos:24.4:r2::::::	24.4 r2	Vulnerable	Juniper
cpe:2.3:h:juniper:srx4700:-:::::::*	not specified by NVD	Running on	Juniper

cpe:2.3:o:juniper:junos:24.4:-:*:*:*:*:*:* Versions 24.4 Vulnerable ·Juniper
cpe:2.3:o:juniper:junos:24.4:r1:*:*:*:*:*:* Versions 24.4 r1 Vulnerable ·Juniper
cpe:2.3:o:juniper:junos:24.4:r1-s2:*:*:*:*:*:* Versions 24.4 r1-s2 Vulnerable ·Juniper
cpe:2.3:o:juniper:junos:24.4:r2:*:*:*:*:*:* Versions 24.4 r2 Vulnerable ·Juniper
cpe:2.3:h:juniper:srx4700:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper

Remediation

Fix · CNA Junos OS (Juniper Networks) Fixed in 24.4R1-S3, 24.4R2

Timeline

2026-10-02 Threatist record created from CVE-2025-59964
2026-10-03 Alias added: GHSA-8cjx-8cpv-m8fr

References

Advisory 1

https://supportportal.juniper.net/JSA103153

Other 1

https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/sampling-edit-forwarding-options.html

TI-2023-18638 Junos OS: EX and SRX Series: A PHP vulnerability in J-Web allows an unauthenticated to… KEVCVSS 3.1CRITICAL 9.8
TI-2020-01585 Out of Cycle Security Advisory: Junos OS: Security vulnerability in J-Web and web based (HTTP/HTTPS) services KEVCVSS 3.1CRITICAL 9.8
TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
TI-2025-15550 Junos OS: An local attacker with shell access can execute arbitrary code KEVCVSS 4.0MEDIUM 6.7
TI-2023-18644 Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload and download arbitrary files KEVCVSS 3.1MEDIUM 5.3
TI-2023-18640 Junos OS: EX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files KEVCVSS 3.1MEDIUM 5.3

See all 792 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences