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        "cveId": "CVE-2026-21907",
        "assignerOrgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
        "state": "PUBLISHED",
        "assignerShortName": "juniper",
        "dateReserved": "2026-01-05T17:32:48.710Z",
        "datePublished": "2026-01-15T20:21:11.010Z",
        "dateUpdated": "2026-01-15T21:12:31.198Z"
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                    "defaultStatus": "unaffected",
                    "product": "Junos Space",
                    "vendor": "Juniper Networks",
                    "versions": [
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                            "lessThan": "24.1R5",
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver"
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            "datePublic": "2026-01-14T17:00:00.000Z",
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                            "value": "<span style=\"background-color: rgb(255, 255, 255);\">A Use of a Broken or Risky Cryptographic Algorithm vulnerability in the&nbsp;<span style=\"background-color: rgb(255, 255, 255);\">TLS/SSL server</span>&nbsp;of Juniper Networks Junos Space allows the use of static key ciphers (ssl-static-key-ciphers), reducing the confidentiality of on-path traffic communicated across the connection. T<span style=\"background-color: rgb(255, 255, 255);\">hese ciphers also do not support Perfect Forward Secrecy (PFS),&nbsp;affecting the long-term confidentiality of encrypted communications.</span></span><p>This issue affects all versions of Junos Space before 24.1R5.</p>"
                        }
                    ],
                    "value": "A Use of a Broken or Risky Cryptographic Algorithm vulnerability in the TLS/SSL server of Juniper Networks Junos Space allows the use of static key ciphers (ssl-static-key-ciphers), reducing the confidentiality of on-path traffic communicated across the connection. These ciphers also do not support Perfect Forward Secrecy (PFS), affecting the long-term confidentiality of encrypted communications.This issue affects all versions of Junos Space before 24.1R5."
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                            "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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                        "baseScore": 5.9,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
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                        "baseSeverity": "HIGH",
                        "privilegesRequired": "NONE",
                        "providerUrgency": "GREEN",
                        "subAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "LOW",
                        "subIntegrityImpact": "NONE",
                        "userInteraction": "NONE",
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                            "cweId": "CWE-327",
                            "description": "CWE-327 Use of a Broken or Risky Cryptographic Algorithm",
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            "providerMetadata": {
                "orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
                "shortName": "juniper",
                "dateUpdated": "2026-01-15T20:21:11.010Z"
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            "references": [
                {
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://supportportal.juniper.net/JSA106006"
                },
                {
                    "tags": [
                        "vendor-advisory"
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                    "url": "https://kb.juniper.net/JSA106006"
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                            "value": "The following software releases have been updated to resolve this specific issue: Junos Space 24.1R5 and all subsequent releases."
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                    "value": "The following software releases have been updated to resolve this specific issue: Junos Space 24.1R5 and all subsequent releases."
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            "source": {
                "advisory": "JSA106006",
                "defect": [
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                "discovery": "INTERNAL"
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            "title": "Junos Space: TLS/SSL server supports use of static key ciphers (ssl-static-key-ciphers)",
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                            "value": "There are no direct workarounds for this issue.<br><br>Ensure any clients connecting to the device do not allow negotiation of&nbsp;static RSA key exchange."
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                    ],
                    "value": "There are no direct workarounds for this issue.\n\nEnsure any clients connecting to the device do not allow negotiation of static RSA key exchange."
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                                "timestamp": "2026-01-15T21:12:27.062334Z",
                                "id": "CVE-2026-21907",
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                                        "Exploitation": "none"
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                "title": "CISA ADP Vulnrichment",
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                    "dateUpdated": "2026-01-15T21:12:31.198Z"
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