{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2018-0031", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2018-0031", "idYear": 2018, "status": "PUBLISHED", "publishedAt": "2018-07-11T18:00:00.000Z", "updatedAt": "2024-09-17T02:21:45.758Z", "importedAt": "2026-10-24T01:55:56.138Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "Junos OS: Receipt of specially crafted UDP packets over MPLS may bypass stateless IP firewall rules", "summary": "Receipt of specially crafted UDP/IP packets over MPLS may be able to bypass a stateless firewall filter. The crafted UDP packets must be encapsulated and meet a very specific packet format to be classified in a way that bypasses IP firewall filter rules. The packets themselves do not cause a service interruption (e.g. RPD crash), but receipt of a high rate of UDP packets may be able to contribute to a denial of service attack. This issue only affects processing of transit UDP/IP packets over MPLS, received on an interface with MPLS enabled. TCP packet processing and non-MPLS encapsulated UDP packet processing are unaffected by this issue. Affected releases are Juniper Networks Junos OS: 12.1X46 versions prior to 12.1X46-D76; 12.3 versions prior to 12.3R12-S10; 12.3X48 versions prior to 12.3X48-D66, 12.3X48-D70; 14.1X53 versions prior to 14.1X53-D47; 15.1 versions prior to 15.1F6-S10, 15.1R4-S9, 15.1R6-S6, 15.1R7; 15.1X49 versions prior to 15.1X49-D131, 15.1X49-D140; 15.1X53 versions prior to 15.1X53-D59 on EX2300/EX3400; 15.1X53 versions prior to 15.1X53-D67 on QFX10K; 15.1X53 versions prior to 15.1X53-D233 on QFX5200/QFX5110; 15.1X53 versions prior to 15.1X53-D471, 15.1X53-D490 on NFX; 16.1 versions prior to 16.1R3-S8, 16.1R4-S9, 16.1R5-S4, 16.1R6-S3, 16.1R7; 16.2 versions prior to 16.2R1-S6, 16.2R2-S5, 16.2R3; 17.1 versions prior to 17.1R1-S7, 17.1R2-S7, 17.1R3; 17.2 versions prior to 17.2R1-S6, 17.2R2-S4, 17.2R3; 17.2X75 versions prior to 17.2X75-D100; 17.3 versions prior to 17.3R1-S4, 17.3R2-S2, 17.3R3; 17.4 versions prior to 17.4R1-S3, 17.4R2; 18.1 versions prior to 18.1R2; 18.2X75 versions prior to 18.2X75-D5.", "affected": [ { "vendor": "Juniper Networks", "product": "Junos OS", "platforms": [ "SRX Series" ], "versions": [ { "version": "12.1X46", "status": "affected", "versionType": "custom", "lessThan": "12.1X46-D76" }, { "version": "12.3X48", "status": "affected", "versionType": "custom", "lessThan": "12.3X48-D66, 12.3X48-D70" }, { "version": "15.1X49", "status": "affected", "versionType": "custom", "lessThan": "15.1X49-D131, 15.1X49-D140" } ] }, { "vendor": "Juniper Networks", "product": "Junos OS", "versions": [ { "version": "12.3", "status": "affected", "versionType": "custom", "lessThan": "12.3R12-S10" }, { "version": "15.1", "status": "affected", "versionType": "custom", "lessThan": "15.1F6-S10, 15.1R4-S9, 15.1R6-S6, 15.1R7" }, { "version": "16.1", "status": "affected", "versionType": "custom", "lessThan": "16.1R3-S8, 16.1R4-S9, 16.1R5-S4, 16.1R6-S3, 16.1R7" }, { "version": "16.2", "status": "affected", "versionType": "custom", "lessThan": "16.2R1-S6, 16.2R2-S5, 16.2R3" }, { "version": "17.1", "status": "affected", "versionType": "custom", "lessThan": "17.1R1-S7, 17.1R2-S7, 17.1R3" }, { "version": "17.2", "status": "affected", "versionType": "custom", "lessThan": "17.2R1-S6, 17.2R2-S4, 17.2R3" }, { "version": "17.2X75", "status": "affected", "versionType": "custom", "lessThan": "17.2X75-D100" }, { "version": "17.3", "status": "affected", "versionType": "custom", "lessThan": "17.3R1-S4, 17.3R2-S2, 17.3R3" }, { "version": "17.4", "status": "affected", "versionType": "custom", "lessThan": "17.4R1-S3, 17.4R2" }, { "version": "18.1", "status": "affected", "versionType": "custom", "lessThan": "18.1R2" }, { "version": "18.2X75", "status": "affected", "versionType": "custom", "lessThan": "18.2X75-D5" } ] }, { "vendor": "Juniper Networks", "product": "Junos OS", "platforms": [ "EX2200/VC, EX3200, EX3300/VC, EX4200, EX4300, EX4550/VC, EX4600, EX6200, EX8200/VC (XRE), QFX3500, QFX3600, QFX5100" ], "versions": [ { "version": "14.1X53", "status": "affected", "versionType": "custom", "lessThan": "14.1X53-D47" } ] }, { "vendor": "Juniper Networks", "product": "Junos OS", "platforms": [ "EX2300, EX3400" ], "versions": [ { "version": "15.1X53", "status": "affected", "versionType": "custom", "lessThan": "15.1X53-D59" } ] }, { "vendor": "Juniper Networks", "product": "Junos OS", "platforms": [ "QFX10000 Series" ], "versions": [ { "version": "15.1X53", "status": "affected", "versionType": "custom", "lessThan": "15.1X53-D67" } ] }, { "vendor": "Juniper Networks", "product": "Junos OS", "platforms": [ "QFX5110, QFX5200" ], "versions": [ { "version": "15.1X53", "status": "affected", "versionType": "custom", "lessThan": "15.1X53-D233" } ] }, { "vendor": "Juniper Networks", "product": "Junos OS", "platforms": [ "NFX150, NFX250" ], "versions": [ { "version": "15.1X53", "status": "affected", "versionType": "custom", "lessThan": "15.1X53-D471, 15.1X53-D490" } ] } ] } } }