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CVE-2023-36846

93
FAUCET Score

CVE-2023-36846 is a critical Missing Authentication vulnerability in Juniper Networks Junos OS on SRX Series devices. It allows an unauthenticated attacker to upload arbitrary files via J-Web, compromising file system integrity. Rated 5.3 MEDIUM on CVSS, its high EPSS and FAUCET scores, along with its inclusion in CISA's KEV catalog, indicate significant risk. This vulnerability is actively exploited in the wild, with public exploit code available and extensive community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 20.4CPE matchmatch criteria
cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*
20.4CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.4:-:*:*:*:*:*:*
20.4CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:*
20.4CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:*
20.4CPE matchmatch criteria
cpe:2.3:o:juniper:junos:20.4:r2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
94.21%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Nov 13, 2023
This CVE's current EPSS score of 0.9421 is in the 100th percentile among its peer group of 23,703 CVEs.

Social Chatter

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

Media Mentions

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

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
supportportal.juniper.net / JSA72300
Vendor Advisory