Vendor dossier / #34
Juniper vulnerabilities in CISA KEV
Answer CISA's KEV catalog lists 8 Juniper vulnerabilities as of catalog 2026.09.23, 0.5% of all 1,721 entries and rank 34 of 283 vendors. The first was added on 2022-03-25 and the most recent on 2025-10-02; 0 are flagged as used in ransomware campaigns.
- KEV entries
- 80.5% of catalog
- Last 90 days
- +0added
- Ransomware: known
- 00%
- Products
- 2distinct
- First added
- 2022-03-25
- Latest added
- 2025-10-02
- Median days to due
- 4
- Open deadlines
- 0federal
TAdditions per quarter
Table view (by year)
| Year | Added |
|---|---|
| 2021 | 0 |
| 2022 | 1 |
| 2023 | 5 |
| 2024 | 0 |
| 2025 | 2 |
| 2026 | 0 |
QCommon questions
How many Juniper vulnerabilities are in CISA KEV?
8, as of KEV catalog 2026.09.23 (released 2026-09-23). That is 0.5% of the catalog.
Which Juniper product has the most KEV entries?
Junos OS, with 7 entries. 2 products appear in total.
How many Juniper KEV vulnerabilities are linked to ransomware?
0 of 8 (0%) are flagged by CISA as known to be used in ransomware campaigns.
When was the latest Juniper vulnerability added to KEV?
2025-10-02 (CVE-2015-7755).
What is the most common weakness in Juniper KEV entries?
CWE-306 (Missing authentication), listed on 3 entries.
PProducts
| Product | Entries | Share of vendor |
|---|---|---|
| Junos OS | 7 | 87.5% |
| ScreenOS | 1 | 12.5% |
WWeaknesses
| CWE | Entries | Share of vendor |
|---|---|---|
| CWE-306 Missing authentication | 3 | 37.5% |
| CWE-473 | 2 | 25% |
| CWE-287 Improper authentication | 1 | 12.5% |
| CWE-653 | 1 | 12.5% |
| CWE-22 Path traversal | 1 | 12.5% |
| CWE-73 | 1 | 12.5% |
EAll 8 entries
| CVE | Product | Vulnerability | Added | Due | Ransomware | CWE |
|---|---|---|---|---|---|---|
| CVE-2015-7755 | ScreenOS | Juniper ScreenOS Improper Authentication Vulnerability | Unknown | CWE-287 | ||
| CVE-2025-21590 | Junos OS | Juniper Junos OS Improper Isolation or Compartmentalization Vulnerability | Unknown | CWE-653 | ||
| CVE-2023-36851 | Junos OS | Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability | Unknown | CWE-306 | ||
| CVE-2023-36847 | Junos OS | Juniper Junos OS EX Series Missing Authentication for Critical Function Vulnerability | Unknown | CWE-306 | ||
| CVE-2023-36846 | Junos OS | Juniper Junos OS SRX Series Missing Authentication for Critical Function Vulnerability | Unknown | CWE-306 | ||
| CVE-2023-36845 | Junos OS | Juniper Junos OS EX Series and SRX Series PHP External Variable Modification Vulnerability | Unknown | CWE-473 | ||
| CVE-2023-36844 | Junos OS | Juniper Junos OS EX Series PHP External Variable Modification Vulnerability | Unknown | CWE-473 | ||
| CVE-2020-1631 | Junos OS | Juniper Junos OS Path Traversal Vulnerability | Unknown | CWE-22, CWE-73 |
Cite this
CISA's Known Exploited Vulnerabilities catalog lists 8 Juniper vulnerabilities (0.5% of all entries). Source: Telemetry analysis of the CISA Known Exploited Vulnerabilities catalog, version 2026.09.23 (released 2026-09-23). https://glide-telemetry.pages.dev/vendors/juniper/
Source: CISA KEV catalog v2026.09.23, released 2026-09-23. Windows end 2026-09-23. Vendor names are CISA's vendorProject strings; Telemetry states no facts about Juniper beyond this data.