{"cve":"CVE-2021-27815","nvd":{"published":"2021-04-14T14:15:13.787","modified":"2026-06-17T03:45:29.457","status":"Modified","description":"NULL Pointer Deference in the exif command line tool, when printing out XML formatted EXIF data, in exif v0.6.22 and earlier allows attackers to cause a Denial of Service (DoS) by uploading a malicious JPEG file, causing the application to crash.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://github.com/libexif/exif/commit/eb84b0e3c5f2a86013b6fcfb800d187896a648fa","https://github.com/libexif/exif/commit/f6334d9d32437ef13dc902f0a88a2be0063d9d1c","https://github.com/libexif/exif/issues/4","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JSWAXZVNXYLV3E4R6YQTEGRGMGWEAR76/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QMC6OTXZRPCUD3LOSWO4ISR7CH7NJQDT/"],"products":["fedoraproject:fedora","libexif_project:exif"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-27815","score":0.01268,"percentile":0.69778,"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."]}