{"id":"CVE-2026-101955","revision":"a608d5b103a24b16baab95ad01937b02","records":[{"revision":"a608d5b103a24b16baab95ad01937b02","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-101955","aliases":[],"title":"Junos OS: SRX Series: Malformed DNS packet causes service disruption when UTM Anti-Spam SBL is used","description":"A Stack-based Buffer Overflow vulnerability in the UTM Anti-Spam SBL of Juniper Networks Junos OS on SRX series allows an unauthenticated remote attacker to cause arbitrary code execution or a denial of service via a injected malformed DNS packet when Anti-Spam SBL inspection is enabled.","state":0,"publishedAt":"2026-10-14T16:28:41.014+00:00","modifiedAt":"2026-10-16T14:18:52.564+00:00","affected":[{"ecosystem":"Vendor product","name":"Junos OS","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"defaultStatus\": \"unaffected\",\n                    \"product\": \"Junos OS\",\n                    \"vendor\": \"Juniper Networks\",\n                    \"versions\": [\n                        {\n                            \"lessThan\": \"23.2R2-S7.7\",\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"23.4R2-S8.13\",\n                            \"status\": \"affected\",\n                            \"version\": \"23.4\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"24.2R2-S5.5\",\n                            \"status\": \"affected\",\n                            \"version\": \"24.2\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"24.4R2-S5\",\n                            \"status\": \"affected\",\n                            \"version\": \"24.4\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"25.2R2-S2\",\n                            \"status\": \"affected\",\n                            \"version\": \"25.2\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"25.4R1-S3\",\n                            \"status\": \"affected\",\n                            \"version\": \"25.4\",\n                            \"versionType\": \"custom\"\n                        },\n                        {\n                            \"lessThan\": \"26.2R1-S2\",\n                            \"status\": \"affected\",\n                            \"version\": \"26.2\",\n                            \"versionType\": \"custom\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.1,"severity":"HIGH"},{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L","score":9.2,"severity":"CRITICAL"}],"references":["https://supportportal.juniper.net/JSA112186"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-101955","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-101955","identifiers":["CVE-2026-101955"]},"retained":false,"historicalAffected":[]}],"coverage":[]}