{"cve":"CVE-2021-1126","nvd":{"published":"2021-01-13T22:15:14.303","modified":"2026-06-17T03:31:00.517","status":"Modified","description":"A vulnerability in the storage of proxy server credentials of Cisco Firepower Management Center (FMC) could allow an authenticated, local attacker to view credentials for a configured proxy server. The vulnerability is due to clear-text storage and weak permissions of related configuration files. An attacker could exploit this vulnerability by accessing the CLI of the affected software and viewing the contents of the affected files. A successful exploit could allow the attacker to view the credentials that are used to access the proxy server.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":5.5},"cwes":["CWE-522","CWE-732","CWE-256"],"references":["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-infodisc-RJdktM6f","https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-infodisc-RJdktM6f"],"products":["cisco:secure_firewall_management_center"],"source":"nvd","synced_at":"2026-10-19T21:14:10.479542811+00:00"},"epss":{"cve":"CVE-2021-1126","score":0.00262,"percentile":0.18076,"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."]}