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CVE-2026-21918 Junos OS: SRX and MX Series: When TCP packets occur in a specific sequence flowd crashes
| Reporter | Title | Published | Views | Family All 13 |
|---|---|---|---|---|
 | CVE-2026-21918 | 15 Jan 202620:27 | – | attackerkb |
 | The vulnerability of Juniper Networks Junos OS, a flow processing demon for operating systems, in network interfaces of the SRX series and MX routers, allowing attackers to cause service interruptions. | 16 Jan 202600:00 | – | bdu_fstec |
 | CVE-2026-21918 | 15 Jan 202621:54 | – | circl |
 | Juniper Networks Junos OS resource management error vulnerability | 15 Jan 202600:00 | – | cnnvd |
 | CVE-2026-21918 | 15 Jan 202620:27 | – | cve |
 | EUVD-2026-2697 | 15 Jan 202620:27 | – | euvd |
 | Juniper Junos OS Vulnerability (JSA106018) | 14 Jan 202600:00 | – | nessus |
 | Vulnerabilities fixed in Juniper Networks JunOS | 16 Jan 202610:07 | – | ncsc |
 | CVE-2026-21918 | 15 Jan 202621:16 | – | nvd |
 | CVE-2026-21918 | 15 Jan 202621:16 | – | osv |
10
[
{
"defaultStatus": "unaffected",
"platforms": [
"SRX Series",
"MX Series"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "22.4R3-S7",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "23.2R2-S3",
"status": "affected",
"version": "23.2",
"versionType": "semver"
},
{
"lessThan": "23.4R2-S4",
"status": "affected",
"version": "23.4",
"versionType": "semver"
},
{
"lessThan": "24.2R2",
"status": "affected",
"version": "24.2",
"versionType": "semver"
}
]
}
]| Source | Link |
|---|---|
| kb | www.kb.juniper.net/JSA106018 |
| supportportal | www.supportportal.juniper.net/JSA106018 |
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15 Jan 2026 20:27Current
CVSS 3.17.5
CVSS 48.7
EPSS0.00375