{"id":"CVE-2026-8931","aliases":["EUVD-2026-33648","GHSA-vcv9-hx6w-934w"],"status":"published","title":"Critical RCE vulnerability in Disig Web Signer","description":"A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.","severity":{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0072,"percentile":0.5425,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-94"],"published":"2026-06-01T14:31:15Z","modified":"2026-07-22T07:10:00Z","products":[{"vendor":"disig","product":"web signer"}],"references":[{"url":"https://www.disig.sk/en/news/important-update-of-the-web-signer-application/"},{"url":"https://www.disig.sk/sk/aktuality/dolezita-aktualizacia-aplikacie-web-signer/"},{"url":"https://download.disigcdn.sk/cdn/products/websigner2/changelog.en.txt"},{"url":"https://download.disigcdn.sk/cdn/products/websigner2/changelog.sk.txt"},{"url":"https://qesportal.sk/Portal/en/Info/News#websigner255"},{"url":"https://qesportal.sk/Portal/sk/Info/News#websigner255"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-8931"},{"url":"https://www.disig.sk/en/news/important-update-of-the-web-signer-application"},{"url":"https://www.disig.sk/sk/aktuality/dolezita-aktualizacia-aplikacie-web-signer"},{"url":"https://github.com/advisories/GHSA-vcv9-hx6w-934w"}],"sources":{"cve":[{"id":"CVE-2026-8931","title":"Critical RCE vulnerability in Disig Web Signer","description":"A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.","status":"published","published":"2026-06-01T14:31:15.911Z","modified":"2026-06-01T15:31:51.875Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical","assessor":"cna"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T13:48:13.398044Z"}],"euvd":[{"id":"EUVD-2026-33648","description":"A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.","status":"published","published":"2026-06-01T14:31:15Z","modified":"2026-06-01T15:31:51Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","level":"critical"}],"updated_at":"2026-11-02T18:20:58.316953Z"}],"ghsa":[{"id":"GHSA-vcv9-hx6w-934w","title":"A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3...","description":"A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.","status":"published","published":"2026-06-01T15:30:42Z","modified":"2026-06-01T18:31:49Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T15:08:27.436234Z"}],"nvd":[{"id":"CVE-2026-8931","description":"A critical Remote Code Execution (RCE) vulnerability exists in Disig Web Signer versions 2.0.3 through 2.5.3.","status":"published","published":"2026-06-01T15:16:39.22Z","modified":"2026-07-22T07:10:00.107Z","cvss":[{"version":"4.0","score":9.4,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"critical","assessor":"secondary"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:12:21.635958Z"}]}}