{"cve":"CVE-2023-52686","nvd":{"published":"2024-05-17T15:15:19.733","modified":"2026-06-17T06:43:20.533","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/powernv: Add a null pointer check in opal_event_init()\n\nkasprintf() returns a pointer to dynamically allocated memory\nwhich can be NULL upon failure.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/8422d179cf46889c15ceff9ede48c5bfa4e7f0b4","https://git.kernel.org/stable/c/8649829a1dd25199bbf557b2621cedb4bf9b3050","https://git.kernel.org/stable/c/9a523e1da6d88c2034f946adfa4f74b236c95ca9","https://git.kernel.org/stable/c/a14c55eb461d630b836f80591d8caf1f74e62877","https://git.kernel.org/stable/c/c0b111ea786ddcc8be0682612830796ece9436c7"],"products":["debian:debian_linux","linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2023-52686","score":0.00252,"percentile":0.16724,"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."]}