{"id":"CVE-2026-101980","published":"2026-10-14T17:17:50Z","modified":"2026-10-15T16:23:06Z","title":"An Integer Underflow vulnerability in the kernel of Juniper Networks Junos OS with Extended Echo configured allows an…","vendor":"Juniper Networks","product":"Junos OS","tier":"core","eol":null,"description":{"text":"An Integer Underflow vulnerability in the kernel of Juniper Networks Junos OS with Extended Echo configured allows an unauthenticated, network-based attacker to cause a denial of service by a kernel crash.","provenance":"source","from":"NVD"},"summary":{"text":"An integer underflow flaw in the kernel of Juniper Networks Junos OS, when Extended Echo is configured, allows a denial-of-service condition. The attack requires only network access, with no authentication or user interaction, and an unauthenticated attacker can crash the kernel remotely.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:18:43Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.00471,"percentile":0.40736,"date":"2026-10-31","provenance":"source"},"kev":null,"vulncheckKev":null,"exploited":false,"otx":null,"cwes":[{"id":"CWE-191","name":"Integer Underflow (Wrap or Wraparound)"}],"references":[{"url":"https://supportportal.juniper.net/JSA112188","tags":[]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2026-101439","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-101439","exploited":false,"exploitedSince":null,"provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[],"timeline":[{"date":"2026-10-14","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-101980","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":15.0,"factors":[{"name":"In a KEV catalog","points":0.0,"detail":"not listed"},{"name":"Recent KEV listing","points":0.0,"detail":"not listed"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":8.15,"detail":"percentile 0.4074"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":0.0,"detail":"0 pulses"},{"name":"CVSS severity","points":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}