{"cve":"CVE-2015-1337","nvd":{"published":"2015-10-09T14:59:00.107","modified":"2026-06-17T00:22:13.257","status":"Modified","description":"Simple Streams (simplestreams) does not properly verify the GPG signatures of disk image files, which allows remote mirror servers to spoof disk images and have unspecified other impact via a 403 (aka Forbidden) response.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://www.ubuntu.com/usn/USN-2746-1","http://www.ubuntu.com/usn/USN-2746-2","https://bugs.launchpad.net/ubuntu/%2Bsource/simplestreams/%2Bbug/1487004","http://www.ubuntu.com/usn/USN-2746-1","http://www.ubuntu.com/usn/USN-2746-2"],"products":["canonical:ubuntu_linux","simpestreams_project:simplestreams"],"source":"nvd","synced_at":"2026-10-19T20:37:45.466985407+00:00"},"epss":{"cve":"CVE-2015-1337","score":0.01709,"percentile":0.77337,"date":"2026-11-01"},"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."]}