{"cve":"CVE-2009-0748","nvd":{"published":"2009-02-27T17:30:09.983","modified":"2026-06-16T23:05:43.400","status":"Modified","description":"The ext4_fill_super function in fs/ext4/super.c in the Linux kernel 2.6.27 before 2.6.27.19 and 2.6.28 before 2.6.28.7 does not validate the superblock configuration, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) by attempting to mount a crafted ext4 filesystem.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://bugzilla.kernel.org/show_bug.cgi?id=12371","http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4ec110281379826c5cf6ed14735e47027c3c5765","http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.19","http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.7","http://osvdb.org/52203"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T19:53:23.791937413+00:00"},"epss":{"cve":"CVE-2009-0748","score":0.00513,"percentile":0.43737,"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."]}