{"cve":"CVE-2017-1556","nvd":{"published":"2017-09-13T18:29:00.213","modified":"2026-06-17T01:14:33.463","status":"Modified","description":"IBM API Connect 5.0.7.0 through 5.0.7.2 is vulnerable to a regular expression attack that could allow an authenticated attacker to use a regex and cause the system to slow or hang. IBM X-Force ID: 131546.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-20"],"references":["http://www.ibm.com/support/docview.wss?uid=swg22008315","http://www.securityfocus.com/bid/100831","https://exchange.xforce.ibmcloud.com/vulnerabilities/131546","http://www.ibm.com/support/docview.wss?uid=swg22008315","http://www.securityfocus.com/bid/100831"],"products":["ibm:api_connect"],"source":"nvd","synced_at":"2026-10-19T20:46:01.145313090+00:00"},"epss":{"cve":"CVE-2017-1556","score":0.01455,"percentile":0.73466,"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."]}