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CVE-2026-33774 Junos OS: MX Series: Firewall filters on lo0.<non-0> in the default routing instance are not in effect

🗓️ 09 Apr 2026 21:34:21Reported by juniperType 
cvelist
 cvelist
🔗 www.cve.org👁 19 Views

MX Series flaw allows unauthenticated remote bypass of firewall filters on loopback lo0.n in the default routing instance.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-33774
9 Apr 202621:34
attackerkb
Circl
CVE-2026-33774
9 Apr 202618:00
circl
CNNVD
Juniper Networks Junos OS MX 代码问题漏洞
9 Apr 202600:00
cnnvd
CVE
CVE-2026-33774
9 Apr 202621:34
cve
EUVD
EUVD-2026-21195
10 Apr 202600:30
euvd
NVD
CVE-2026-33774
9 Apr 202622:16
nvd
Positive Technologies
PT-2026-31798
9 Apr 202600:00
ptsecurity
Vulnrichment
CVE-2026-33774 Junos OS: MX Series: Firewall filters on lo0.<non-0> in the default routing instance are not in effect
9 Apr 202621:34
vulnrichment
[
  {
    "defaultStatus": "unaffected",
    "platforms": [
      "MX Series"
    ],
    "product": "Junos OS",
    "vendor": "Juniper Networks",
    "versions": [
      {
        "lessThan": "23.2R2-S6",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThan": "23.4R2-S7",
        "status": "affected",
        "version": "23.4",
        "versionType": "semver"
      },
      {
        "lessThan": "24.2R2",
        "status": "affected",
        "version": "24.2",
        "versionType": "semver"
      },
      {
        "lessThan": "24.4R2",
        "status": "affected",
        "version": "24.4",
        "versionType": "semver"
      }
    ]
  }
]

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