An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX 7000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
When a device has a Layer 3 or an IRB interface configured in a VPLS instance and specific traffic is received, the evo-pfemand processes crashes which causes a service outage for the respective FPC until the system is recovered manually.
This issue only affects Junos OS Evolved 22.4R2-S1 and 22.4R2-S2 releases and is fixed in 22.4R3. No other releases are affected.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://supportportal.juniper.net/JSA82995 |
|
History
Thu, 22 Jan 2026 23:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Juniper
Juniper acx7020 Juniper acx7024 Juniper acx7024x Juniper acx7100 Juniper acx7300 Juniper acx7509 Juniper junos Os Evolved |
|
| CPEs | cpe:2.3:h:juniper:acx7020:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx7024:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx7024x:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx7100:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx7300:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:acx7509:-:*:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.4:r2-s1:*:*:*:*:*:* cpe:2.3:o:juniper:junos_os_evolved:22.4:r2-s2:*:*:*:*:*:* |
|
| Vendors & Products |
Juniper
Juniper acx7020 Juniper acx7024 Juniper acx7024x Juniper acx7100 Juniper acx7300 Juniper acx7509 Juniper junos Os Evolved |
Status: PUBLISHED
Assigner: juniper
Published: 2024-07-11T16:09:15.233Z
Updated: 2024-08-02T04:26:15.853Z
Reserved: 2024-06-25T15:12:53.241Z
Link: CVE-2024-39535
Updated: 2024-07-12T18:09:47.379Z
Status : Analyzed
Published: 2024-07-11T17:15:10.900
Modified: 2026-01-22T21:13:07.270
Link: CVE-2024-39535
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