Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-36845

98
FAUCET Score

CVE-2023-36845 is a critical PHP External Variable Modification vulnerability in Juniper Networks Junos OS J-Web interface on EX and SRX Series devices. An unauthenticated, network-based attacker can exploit this by crafting a request to manipulate the PHPRC variable, leading to remote code execution. This vulnerability carries a CVSS score of 9.8 (Critical) due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. It is actively exploited in the wild, with public exploit modules available in Metasploit and Nuclei, and has garnered significant 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

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
94.15%
Probability of exploitation in next 30 days
EPSS Percentile
99.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Added to KEV · Nov 13, 2023
Metasploit: Junos OS PHPRC Environment Variable Manipulation RCE · Aug 17, 2023
Nuclei: CVE-2023-36845 · Sep 19, 2023
This CVE's current EPSS score of 0.9415 is in the 99th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 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
packetstormsecurity.com / files/174865/Juniper-SRX-Firewall-EX-Switch-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/176969/Juniper-SRX-Firewall-EX-Switch-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
supportportal.juniper.net / JSA72300
Vendor Advisory