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CVE-2025-21601 Junos OS: SRX and EX Series, MX240, MX480, MX960, QFX5120 Series: When web management is enabled for specific services an attacker may cause a CPU spike by sending genuine packets to the device

🗓️ 09 Apr 2025 19:51:36Reported by juniperType 
cvelist
 cvelist
🔗 www.cve.org👁 108 Views

Vulnerability in Junos OS allows CPU spikes via genuine packets, causing Denial of Service condition.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
Junos OS Web Management Maintenance Failure
14 Aug 202500:00
–bdu_fstec
circl
Circl
CVE-2025-21601
9 Apr 202523:28
–circl
cnnvd
CNNVD
Juniper Networks Junos OS security vulnerabilities
9 Apr 202500:00
–cnnvd
cve
CVE
CVE-2025-21601
9 Apr 202519:51
–cve
euvd
EUVD
EUVD-2025-10526
3 Oct 202520:07
–euvd
nessus
Tenable Nessus
Juniper Junos OS Vulnerability (JSA96452)
9 Apr 202500:00
–nessus
nvd
NVD
CVE-2025-21601
9 Apr 202520:15
–nvd
osv_cve
osv_cve
CVE-2025-21601
9 Apr 202520:15
–osv_cve
ptsecurity
Positive Technologies
PT-2025-15851 · Juniper Networks · Junos
9 Apr 202500:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2025-21601: Improper Following of Specification by Caller
9 Apr 202500:00
–rapid7
Rows per page
[
  {
    "defaultStatus": "unaffected",
    "modules": [
      "J-Web",
      "Captive Portal",
      "802.1X",
      "Juniper Secure Connect (JSC)",
      "Firewall Authentication"
    ],
    "packageName": "AppWeb",
    "platforms": [
      "SRX Series",
      "EX Series",
      "MX240",
      "MX480",
      "MX960",
      "QFX5120 Series"
    ],
    "product": "Junos OS",
    "programRoutines": [
      {
        "name": "Mbedthis AppWeb"
      }
    ],
    "repo": "https://www.embedthis.com/appweb",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "21.4R3-S9",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThan": "22.2R3-S5",
        "status": "affected",
        "version": "22.2",
        "versionType": "semver"
      },
      {
        "lessThan": "22.4R3-S4",
        "status": "affected",
        "version": "22.4",
        "versionType": "semver"
      },
      {
        "lessThan": "23.2R2-S3",
        "status": "affected",
        "version": "23.2",
        "versionType": "semver"
      },
      {
        "lessThan": "23.4R2-S3",
        "status": "affected",
        "version": "23.4",
        "versionType": "semver"
      },
      {
        "lessThan": "24.2R1-S1, 24.2R2",
        "status": "affected",
        "version": "24.2",
        "versionType": "semver"
      }
    ]
  }
]

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