{"cve":"CVE-2018-18459","nvd":{"published":"2018-10-18T06:29:00.917","modified":"2026-06-17T01:47:20.630","status":"Modified","description":"The function DCTStream::getBlock in Stream.cc in Xpdf 4.00 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted pdf file, as demonstrated by pdftoppm.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://forum.xpdfreader.com/viewtopic.php?f=3&t=41217","https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm","https://forum.xpdfreader.com/viewtopic.php?f=3&t=41217","https://github.com/TeamSeri0us/pocs/tree/master/xpdf/2018_10_16/pdftoppm"],"products":["xpdfreader:xpdf"],"source":"nvd","synced_at":"2026-10-19T20:53:59.789560037+00:00"},"epss":{"cve":"CVE-2018-18459","score":0.01141,"percentile":0.66667,"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."]}