{"cve":"CVE-2023-53032","nvd":{"published":"2025-03-27T17:15:52.997","modified":"2026-06-17T06:44:09.770","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function.\n\nWhen first_ip is 0, last_ip is 0xFFFFFFFF, and netmask is 31, the value of\nan arithmetic expression 2 << (netmask - mask_bits - 1) is subject\nto overflow due to a failure casting operands to a larger data type\nbefore performing the arithmetic.\n\nNote that it's harmless since the value will be checked at the next step.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with SVACE.","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-190"],"references":["https://git.kernel.org/stable/c/4e6a70fd840400e3a2e784a6673968a3eb2431c0","https://git.kernel.org/stable/c/511cf17b2447fc41cfef8d71936e1fa53e395c1e","https://git.kernel.org/stable/c/9ea4b476cea1b7d461d16dda25ca3c7e616e2d15","https://git.kernel.org/stable/c/dfd834ccc1b88bbbab81b9046a3a539dd0c2d14f","https://git.kernel.org/stable/c/e137d9bb26bd85ce07323a38e38ceb0b160db841"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:00:28.034033815+00:00"},"epss":{"cve":"CVE-2023-53032","score":0.00201,"percentile":0.10032,"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."]}