{"cve":"CVE-2009-4881","nvd":{"published":"2010-06-01T20:30:02.727","modified":"2026-06-16T23:14:32.023","status":"Modified","description":"Integer overflow in the __vstrfmon_l function in stdlib/strfmon_l.c in the strfmon implementation in the GNU C Library (aka glibc or libc6) before 2.10.1 allows context-dependent attackers to cause a denial of service (application crash) via a crafted format string, as demonstrated by the %99999999999999999999n string, a related issue to CVE-2008-1391.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-189"],"references":["http://security.gentoo.org/glsa/glsa-201011-01.xml","http://sources.redhat.com/bugzilla/show_bug.cgi?id=10600","http://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=153aa31b93be22e01b236375fb02a9f9b9a0195f","http://www.debian.org/security/2010/dsa-2058","http://www.mandriva.com/security/advisories?name=MDVSA-2010:111"],"products":["gnu:glibc"],"source":"nvd","synced_at":"2026-10-19T19:56:26.512081652+00:00"},"epss":{"cve":"CVE-2009-4881","score":0.02025,"percentile":0.80997,"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."]}