Information disclosure in Juniper Junos OS running on QFX3500, QFX3600, QFX5100, QFX5200…
Priority LOW 36CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-200.
Summary
Juniper Networks QFX3500, QFX3600, QFX5100, QFX5200, EX4300 and EX4600 devices running Junos OS 14.1X53 prior to 14.1X53-D40, 15.1X53 prior to 15.1X53-D40, 15.1 prior to 15.1R2, do not pad Ethernet packets with zeros, and thus some packets can contain fragments of system memory or data from previous packets. This issue is also known as 'Etherleak'
Why it matters now
EPSS 0.01803 78th percentileScored 2026-11-07
Fix Fixed Junos OS running on QFX3500, QFX3600, QFX5100, QFX5200, EX4300, EX4600 devices (Juniper Networks): 14.1X53-D40, 15.1X53-D40, 15.1R2
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Juniper | Junos OS running on QFX3500, QFX3600, QFX5100, QFX5200, EX4300, EX4600 devices | 14.1X53 to before 14.1X53-D40; 15.1X53 to before 15.1X53-D40; 15.1 to before 15.1R2 | 14.1X53-D40, 15.1X53-D40, 15.1R2 | Patch available | CNA |
- Junos OS running on QFX3500, QFX3600, QFX5100, QFX5200, EX4300, EX4600 devices VendorJuniper Affected 14.1X53 to before 14.1X53-D40; 15.1X53 to before 15.1X53-D40; 15.1 to before 15.1R2 Fixed in 14.1X53-D40, 15.1X53-D40, 15.1R2 Patch available CNA
CPE configurations NVD · 25
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:14.1x53:-:*:*:*:*:*:* | 14.1x53 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:14.1x53:d10:*:*:*:*:*:* | 14.1x53 d10 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:14.1x53:d15:*:*:*:*:*:* | 14.1x53 d15 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:14.1x53:d16:*:*:*:*:*:* | 14.1x53 d16 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:14.1x53:d25:*:*:*:*:*:* | 14.1x53 d25 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:14.1x53:d26:*:*:*:*:*:* | 14.1x53 d26 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:14.1x53:d27:*:*:*:*:*:* | 14.1x53 d27 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:14.1x53:d30:*:*:*:*:*:* | 14.1x53 d30 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:14.1x53:d35:*:*:*:*:*:* | 14.1x53 d35 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1:-:*:*:*:*:*:* | 15.1 | Vulnerable | Juniper |
- cpe:2.3:o:juniper:junos:14.1x53:-:*:*:*:*:*:* Versions 14.1x53 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:14.1x53:d10:*:*:*:*:*:* Versions 14.1x53 d10 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:14.1x53:d15:*:*:*:*:*:* Versions 14.1x53 d15 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:14.1x53:d16:*:*:*:*:*:* Versions 14.1x53 d16 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:14.1x53:d25:*:*:*:*:*:* Versions 14.1x53 d25 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:14.1x53:d26:*:*:*:*:*:* Versions 14.1x53 d26 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:14.1x53:d27:*:*:*:*:*:* Versions 14.1x53 d27 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:14.1x53:d30:*:*:*:*:*:* Versions 14.1x53 d30 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:14.1x53:d35:*:*:*:*:*:* Versions 14.1x53 d35 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1:-:*:*:*:*:*:* Versions 15.1 Vulnerable ·Juniper
Show 15 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:juniper:junos:15.1:r1:*:*:*:*:*:* | 15.1 r1 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1x53:-:*:*:*:*:*:* | 15.1x53 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1x53:d20:*:*:*:*:*:* | 15.1x53 d20 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1x53:d21:*:*:*:*:*:* | 15.1x53 d21 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1x53:d25:*:*:*:*:*:* | 15.1x53 d25 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1x53:d30:*:*:*:*:*:* | 15.1x53 d30 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1x53:d32:*:*:*:*:*:* | 15.1x53 d32 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1x53:d33:*:*:*:*:*:* | 15.1x53 d33 | Vulnerable | Juniper |
| cpe:2.3:o:juniper:junos:15.1x53:d34:*:*:*:*:*:* | 15.1x53 d34 | Vulnerable | Juniper |
| cpe:2.3:h:juniper:ex4300:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:ex4600:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx3500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx3600:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5100:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
| cpe:2.3:h:juniper:qfx5200:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Juniper |
- cpe:2.3:o:juniper:junos:15.1:r1:*:*:*:*:*:* Versions 15.1 r1 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1x53:-:*:*:*:*:*:* Versions 15.1x53 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1x53:d20:*:*:*:*:*:* Versions 15.1x53 d20 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1x53:d21:*:*:*:*:*:* Versions 15.1x53 d21 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1x53:d25:*:*:*:*:*:* Versions 15.1x53 d25 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1x53:d30:*:*:*:*:*:* Versions 15.1x53 d30 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1x53:d32:*:*:*:*:*:* Versions 15.1x53 d32 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1x53:d33:*:*:*:*:*:* Versions 15.1x53 d33 Vulnerable ·Juniper
- cpe:2.3:o:juniper:junos:15.1x53:d34:*:*:*:*:*:* Versions 15.1x53 d34 Vulnerable ·Juniper
- cpe:2.3:h:juniper:ex4300:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:ex4600:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx3500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx3600:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5100:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
- cpe:2.3:h:juniper:qfx5200:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Juniper
Remediation
- Fix · CNA Junos OS running on QFX3500, QFX3600, QFX5100, QFX5200, EX4300, EX4600 devices (Juniper Networks) Fixed in 14.1X53-D40, 15.1X53-D40, 15.1R2
Timeline
- 2026-10-02 Threatist record created from CVE-2017-2304
- 2026-10-03 Alias added: GHSA-2wf6-7ffx-gx7r
References
Advisory 1
More Juniper Junos vulnerabilities
- TI-2023-18638 Junos OS: EX and SRX Series: A PHP vulnerability in J-Web allows an unauthenticated to… KEVCVSS 3.1CRITICAL 9.8
- TI-2020-01585 Out of Cycle Security Advisory: Junos OS: Security vulnerability in J-Web and web based (HTTP/HTTPS) services KEVCVSS 3.1CRITICAL 9.8
- TI-2015-04610 Assertion failure in ISC BIND named via TKEY queries KEVCVSS 3.1HIGH 7.5
- TI-2025-15550 Junos OS: An local attacker with shell access can execute arbitrary code KEVCVSS 4.0MEDIUM 6.7
- TI-2023-18644 Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload and download arbitrary files KEVCVSS 3.1MEDIUM 5.3
- TI-2023-18640 Junos OS: EX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files KEVCVSS 3.1MEDIUM 5.3
Sources
- CVE-2017-2304 · CVE Program
- CVE-2017-2304 · NVD
- FIRST EPSS
- GHSA-2wf6-7ffx-gx7r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences