CVE-2026-27459
pyOpenSSL DTLS cookie callback buffer overflow
CVSS score
7.2
EPSS probability
%0.9
Risk score
0.1
Published
7 mo ago
Vulnerability Timeline (Change History)
CVE-2026-27459 historical changes made to the vulnerability by NVD, CISA and MITRE:
| Date | Actor / Source | Action / Description | Type | Previous value | New value |
|---|---|---|---|---|---|
| 17.10.2026 | nvd@nist.gov | Initial Analysis & CVSS Vector Assignment | CVSS V3.1 | — | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U |
| 17.03.2026 | CISA Coordinator | SSVC Risk Re-assessment | SSVC / KEV | exploitation: none | exploitation: none |
| 17.03.2026 | MITRE / NVD | New CVE Record Received & Ingested | CVE Created | — | CVE-2026-27459 |
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Get this vulnerability through the API
Affected products, version ranges, exploitation status and patch information in a single request, with a free key.
curl -H "x-api-key: $DAYBREACH_API_KEY" \ "https://api.daybreach.dev/api/v1/intel/cves/CVE-2026-27459"