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CVE-2017-2304

20
FAUCET Score

CVE-2017-2304, also known as 'Etherleak', affects Juniper QFX and EX series devices running specific Junos OS versions, where Ethernet packets are not properly padded with zeros. This flaw can lead to the unintended disclosure of system memory fragments or data from previous packets. With a CVSS score of 7.5 (HIGH), this vulnerability presents a network-based attack vector with low complexity, allowing an unauthenticated attacker to achieve high confidentiality impact by potentially exfiltrating sensitive information. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
14.1x53CPE matchmatch criteria
cpe:2.3:o:juniper:junos:14.1x53:-:*:*:*:*:*:*
14.1x53CPE matchmatch criteria
cpe:2.3:o:juniper:junos:14.1x53:d10:*:*:*:*:*:*
14.1x53CPE matchmatch criteria
cpe:2.3:o:juniper:junos:14.1x53:d15:*:*:*:*:*:*
14.1x53CPE matchmatch criteria
cpe:2.3:o:juniper:junos:14.1x53:d16:*:*:*:*:*:*
14.1x53CPE matchmatch criteria
cpe:2.3:o:juniper:junos:14.1x53:d25:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.80%
Probability of exploitation in next 30 days
EPSS Percentile
76.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0180 is in the 59th percentile among its peer group of 51,551 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

junipervendor investigatingvia nvd_reference
View patch

References

kb.juniper.net / JSA10773
Vendor Advisory
securityfocus.com / bid/95403
Third Party AdvisoryVDB Entry
securitytracker.com / id/1037593
Third Party AdvisoryVDB Entry