CVE-2025-21601 describes an Improper Following of Specification by Caller vulnerability in Juniper Networks Junos OS on SRX, EX, MX240, MX480, MX960, and QFX5120 Series devices, specifically impacting web management components like J-Web and Captive Portal. An unauthenticated, network-based attacker can exploit this to cause a sustained Denial of Service (DoS) by sending genuine traffic, leading to high CPU utilization by the httpd process. The vulnerability has a CVSS score of 7.5 (HIGH), indicating a low attack complexity and no user interaction required, with the primary impact being availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 21.4CPE matchmatch criteria | cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:* | ||
21.4CPE matchmatch criteria | cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:* | ||
21.4CPE matchmatch criteria | cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:* | ||
21.4CPE matchmatch criteria | cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:* | ||
21.4CPE matchmatch criteria | cpe:2.3:o:juniper:junos:21.4:r2:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:A/V:C/RE:M/U:Amber
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.
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 records are not available for this CVE.