CVE-2024-39540
published 2024-07-11CVE-2024-39540: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on SRX Series, and MX…
PriorityP346high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.49%
39.0th percentile
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on SRX Series, and MX Series with SPC3 allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
When an affected device receives specific valid TCP traffic, the pfe crashes and restarts leading to a momentary but complete service outage.
This issue affects Junos OS:
21.2 releases from 21.2R3-S5 before 21.2R3-S6.
This issue does not affect earlier or later releases.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| juniper | junos | — | — |
| juniper | junos_os | — | — |
| juniper | mx_series | — | — |
| juniper | srx_series | — | — |
| juniper_networks | junos_os | >= 21.2R3-S5 < 21.2R3-S6 | 21.2R3-S6 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv4.08.7HIGHCVSS: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
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Juniper
CVE-2024-39540: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on SRX Series
vendor_juniper·2024-07-11·CVSS 7.5
CVE-2024-39540 [HIGH] CWE-754 CVE-2024-39540: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on SRX Series
CVE-2024-39540: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on SRX Series, and MX Series with SPC3 allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
When an affected device receives specific valid TCP traffic, the pfe crashes and restarts leading to a momentary but complete service outage.
This issue affects Junos OS:
21.2 releases from 21.2R3-S5 before 21.2R3-S6.
This issue does not affect earlier or later releases.
GHSA
GHSA-xwcp-g9fq-2mmp: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on SRX Series
ghsa_unreviewed·2024-07-11
CVE-2024-39540 [HIGH] CWE-754 GHSA-xwcp-g9fq-2mmp: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on SRX Series
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on SRX Series, and MX Series with SPC3 allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
When an affected device receives specific valid TCP traffic, the pfe crashes and restarts leading to a momentary but complete service outage.
This issue affects Junos OS:
21.2 releases from 21.2R3-S5 before 21.2R3-S6.
This issue does not affect earlier or later releases.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2024-07-11
Published