CVE-2024-39535
Last modified
CVE-2024-39535 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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.. EPSS estimates a 0.33% chance of exploitation in the next 30 days.
Description
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
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS:4.0/AV:A/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
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Juniper | Junos Os Evolved | 22.4 | R2-S1 |
References
- https://supportportal.juniper.net/JSA82995Vendor Advisory
- https://supportportal.juniper.net/JSA82995Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2024-39535?
How severe is CVE-2024-39535?
How do I fix CVE-2024-39535?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2024
- CVE-2024-3953Rejected reason: This CVE ID has been rejected or withdrawn …
- CVE-2024-39530An Improper Check for Unusual or Exceptional Conditions vuln…7.5
- CVE-2024-39531An Improper Handling of Values vulnerability in the Packet F…8.7
- CVE-2024-39532An Insertion of Sensitive Information into Log File vulnerab…6.3
- CVE-2024-39533An Unimplemented or Unsupported Feature in the UI vulnerabil…6.9
- CVE-2024-39534An Incorrect Comparison vulnerability in the local address v…5.4
- CVE-2024-39536A Missing Release of Memory after Effective Lifetime vulnera…6
- CVE-2024-39537An Improper Restriction of Communication Channel to Intended…6.9
- CVE-2024-39538A Buffer Copy without Checking Size of Input vulnerability i…7.1
- CVE-2024-39539A Missing Release of Memory after Effective Lifetime vulnera…6
- CVE-2024-3954The Ditty plugin for WordPress is vulnerable to PHP Object I…8.8
- CVE-2024-39540An Improper Check for Unusual or Exceptional Conditions vuln…8.7
Are you affected by CVE-2024-39535?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST