{"cve":"CVE-2015-8777","nvd":{"published":"2016-01-20T05:59:01.237","modified":"2026-06-17T00:35:13.493","status":"Modified","description":"The process_envvars function in elf/rtld.c in the GNU C Library (aka glibc or libc6) before 2.23 allows local users to bypass a pointer-guarding protection mechanism via a zero value of the LD_POINTER_GUARD environment variable.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","score":5.5},"cwes":["CWE-254"],"references":["http://hmarco.org/bugs/glibc_ptr_mangle_weakness.html","http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177404.html","http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00036.html","http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00037.html","http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00038.html"],"products":["gnu:glibc"],"source":"nvd","synced_at":"2026-10-19T20:37:48.328043465+00:00"},"epss":{"cve":"CVE-2015-8777","score":0.0057,"percentile":0.47169,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}