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CVE-2014-3817

21
FAUCET Score

CVE-2014-3817 is a denial-of-service vulnerability affecting specific versions of Juniper Junos on SRX Series devices when IPv4 to IPv6 NAT protocol translation is enabled. An unauthenticated remote attacker can exploit this by sending a crafted packet, leading to a flowd hang or crash. With a CVSS score of 7.8, this vulnerability is considered high severity due to its network-based attack vector and complete availability impact. While no public exploit code or active exploitation has been observed, and it has minimal community discussion, organizations using affected Juniper Junos versions should apply the recommended patches.

Impacted Technologies

VendorProductVersion(s)CPE
11.4CPE matchmatch criteria
cpe:2.3:o:juniper:junos:11.4:*:*:*:*:*:*:*
12.1x44CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.1x44:*:*:*:*:*:*:*
12.1x45CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.1x45:*:*:*:*:*:*:*
12.1x46CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.1x46:*:*:*:*:*:*:*
12.1x47CPE matchmatch criteria
cpe:2.3:o:juniper:junos:12.1x47:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

AV:N/AC:L/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.37%
Probability of exploitation in next 30 days
EPSS Percentile
87.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0337 is in the 78th 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

secunia.com / advisories/59136
kb.juniper.net / InfoCenter/index
Vendor Advisory
securityfocus.com / bid/68545
securitytracker.com / id/1030558