CVE-2017-5334

Status: ModifiedCritical (9.8)—
Double free vulnerability in the gnutls_x509_ext_import_proxy function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attackers to have unspecified impact via crafted policy language information in an X.509 certificate with a Proxy Certificate Information extension.
CVSS

Version: 3.0
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base score: 9.8
Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 33%
Percentile among all scored CVEs: 98
Score date: 10/6/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (2)

GNU — Gnutls Opensuse — Leap
CWEs

CWE-415
References

Raw JSON (NVD)

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