{"id":"CVE-2018-15374","aliases":["EUVD-2018-7252","GHSA-hmgr-779r-qfww"],"status":"published","title":"Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability","description":"A vulnerability in the Image Verification feature of Cisco IOS XE Software could allow an authenticated, local attacker to install a malicious software image or file on an affected device. The vulnerability is due to the affected software improperly verifying digital signatures for software images and files that are uploaded to a device. An attacker could exploit this vulnerability by uploading a malicious software image or file to an affected device. A successful exploit could allow the attacker to bypass digital signature verification checks for software images and files and install a malicious software image or file on the affected device.","severity":{"version":"3.0","score":6.7,"vector":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00236,"percentile":0.14643,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-347"],"published":"2018-10-05T14:00:00Z","modified":"2026-06-17T01:42:20Z","products":[{"vendor":"cisco","product":"cisco ios xe software"},{"vendor":"cisco","product":"ios_xe"}],"references":[{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-digsig","tags":["vendor-advisory","x_refsource_CISCO","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/105415","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-15374"},{"url":"https://github.com/advisories/GHSA-hmgr-779r-qfww"}],"sources":{"cve":[{"id":"CVE-2018-15374","title":"Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability","description":"A vulnerability in the Image Verification feature of Cisco IOS XE Software could allow an authenticated, local attacker to install a malicious software image or file on an affected device. The vulnerability is due to the affected software improperly verifying digital signatures for software images and files that are uploaded to a device. An attacker could exploit this vulnerability by uploading a malicious software image or file to an affected device. A successful exploit could allow the attacker to bypass digital signature verification checks for software images and files and install a malicious software image or file on the affected device.","status":"published","published":"2018-10-05T14:00:00Z","modified":"2024-11-26T14:35:34.824Z","cwes":["CWE-347"],"updated_at":"2026-11-02T14:35:03.288698Z"}],"euvd":[{"id":"EUVD-2018-7252","description":"A vulnerability in the Image Verification feature of Cisco IOS XE Software could allow an authenticated, local attacker to install a malicious software image or file on an affected device. The vulnerability is due to the affected software improperly verifying digital signatures for software images and files that are uploaded to a device. An attacker could exploit this vulnerability by uploading a malicious software image or file to an affected device. A successful exploit could allow the attacker to bypass digital signature verification checks for software images and files and install a malicious software image or file on the affected device.","status":"published","published":"2018-10-05T14:00:00Z","modified":"2024-11-26T14:35:34Z","updated_at":"2026-11-03T00:04:47.599292Z"}],"ghsa":[{"id":"GHSA-hmgr-779r-qfww","title":"A vulnerability in the Image Verification feature of Cisco IOS XE Software could allow an...","description":"A vulnerability in the Image Verification feature of Cisco IOS XE Software could allow an authenticated, local attacker to install a malicious software image or file on an affected device. The vulnerability is due to the affected software improperly verifying digital signatures for software images and files that are uploaded to a device. An attacker could exploit this vulnerability by uploading a malicious software image or file to an affected device. A successful exploit could allow the attacker to bypass digital signature verification checks for software images and files and install a malicious software image or file on the affected device.","status":"published","published":"2022-05-13T01:34:22Z","modified":"2023-02-01T05:08:42Z","cvss":[{"version":"3.0","score":6.7,"vector":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:50:49.963472Z"}],"nvd":[{"id":"CVE-2018-15374","description":"A vulnerability in the Image Verification feature of Cisco IOS XE Software could allow an authenticated, local attacker to install a malicious software image or file on an affected device. The vulnerability is due to the affected software improperly verifying digital signatures for software images and files that are uploaded to a device. An attacker could exploit this vulnerability by uploading a malicious software image or file to an affected device. A successful exploit could allow the attacker to bypass digital signature verification checks for software images and files and install a malicious software image or file on the affected device.","status":"published","published":"2018-10-05T14:29:06.543Z","modified":"2026-06-17T01:42:20.647Z","cvss":[{"version":"3.0","score":6.7,"vector":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":7.2,"vector":"AV:L/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:04:42.52179Z"}]}}