CVE-2026-57025: Junos OS and Junos OS Evolved: EX Series, QFX Series, MX Series: A specific 'show l2-learning/ethernet-switching' command causes l2ald crash
Juniper Networks · Junos OS
Vendor fix available · Affected: Juniper Networks Junos OS · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 3% of scored CVEs
DescriptionCVE.org
A Return of Pointer Value Outside of Expected Range vulnerability in the fileio library of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privilged attacker to cause a Denial-of-Service (DoS). On EX Series, QFX Series and MX Series a low-privileged attacker issuing a specific 'show l2-learning' or 'show ethernet-switching' command will cause an l2ald crash which will lead to a temporary service impact for all layer 2 services until the process has automatically restarted. This issue affects EX Series, QFX Series, MX Series: Junos OS: * all versions before 23.2R2-S7, * 23.4 versions before 23.4R2-S7, * 24.2 versions before 24.2R2, * 24.4 versions before 24.4R1-S2. Junos OS Evolved: * all versions before 23.2R2-S7-EVO, * 23.4 versions before 23.4R2-S8-EVO, * 24.2 versions before 24.2R2-EVO, * 24.4 versions before 24.4R1-S3-EVO.
Affected products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Juniper Networks · Junos OSbefore 23.2R2-S7; from 23.4 before 23.4R2-S7; from 24.2 before 24.2R2; from 24.4 before 24.4R1-S2
- Juniper Networks · Junos OS Evolvedbefore 23.2R2-S7-EVO; from 23.4 before 23.4R2-S8-EVO; from 24.2 before 24.2R2-EVO; from 24.4 before 24.4R1-S3-EVO
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Juniper Networks
- Published
- July 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-57025 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.