CVE-2024-39546

CVE-2024-39546 is a high-severity vulnerability in Juniper Junos Os Evolved with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Description

A Missing Authorization vulnerability in the Socket Intercept (SI) command file interface of Juniper Networks Junos OS Evolved allows an authenticated, low-privilege local attacker to modify certain files, allowing the attacker to cause any command to execute with root privileges leading to privilege escalation ultimately compromising the system.  This issue affects Junos OS Evolved:  * All versions prior to 21.2R3-S8-EVO,  * 21.4 versions prior to  21.4R3-S6-EVO,  * 22.1 versions prior to 22.1R3-S5-EVO,  * 22.2 versions prior to 22.2R3-S3-EVO,  * 22.3 versions prior to 22.3R3-S3-EVO,  * 22.4 versions prior to 22.4R3-EVO,  * 23.2 versions prior to 23.2R2-EVO.

Frequently asked questions

What is CVE-2024-39546?
A Missing Authorization vulnerability in the Socket Intercept (SI) command file interface of Juniper Networks Junos OS Evolved allows an authenticated, low-privilege local attacker to modify certain files, allowing the attacker to cause any command to execute with root privileges leading to privilege escalation ultimately compromising the system.  This issue affects Junos OS Evolved:  * All versions prior to 21.2R3-S8-EVO,  * 21.4 versions prior to  21.4R3-S6-EVO,  * 22.1 versions prior to 22.1R3-S5-EVO,  * 22.2 versions prior to 22.2R3-S3-EVO,  * 22.3 versions prior to 22.3R3-S3-EVO,  * 22.4 versions prior to 22.4R3-EVO,  * 23.2 versions prior to 23.2R2-EVO.
How severe is CVE-2024-39546?
CVE-2024-39546 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-39546 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-39546?
CVE-2024-39546 primarily affects Juniper Junos Os Evolved. In total, 126 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2024-39546?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2024-39546 have an EU (EUVD) identifier?
Yes. CVE-2024-39546 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-38072.
When was CVE-2024-39546 published?
CVE-2024-39546 was published on 2024-07-11 and last updated on 2026-06-17.

References

Affected products (126)

More vulnerabilities in Juniper Junos Os Evolved

All CVEs affecting Juniper Junos Os Evolved →

Other CWE-862 (Missing Authorization) vulnerabilities

Browse all CWE-862 (Missing Authorization) vulnerabilities →