CVE-2019-12649

Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability

MEDIUM

6.7

CVSS Score

Published: September 25, 2019 at 08:05 PM UTC

Updated: June 17, 2026 at 02:15 AM UTC

87 products affected across 1 vendorIOSIOS XeCatalyst 9300

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Severity

MEDIUM6.7

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

A vulnerability in the Image Verification feature of Cisco IOS XE Software could allow an authenticated, local attacker to install and boot a malicious software image or execute unsigned binaries on an affected device. The vulnerability exists because, under certain circumstances, an affected device can be configured to not verify the digital signatures of system image files during the boot process. An attacker could exploit this vulnerability by abusing a specific feature that is part of the device boot process. A successful exploit could allow the attacker to install and boot a malicious software image or execute unsigned binaries on the targeted device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

IOS · Cisconpm

95%

16.9.1

IOS Xe · Cisco

95%

16.8(1)

cisco-catalyst-3850-12s-e (environment) · cisco-catalyst-3850-12s-s (environment) · cisco-catalyst-3850-12xs-e (environment) · cisco-catalyst-3850-12xs-s (environment) · cisco-catalyst-3850-16xs-e (environment) · cisco-catalyst-3850-16xs-s (environment) · cisco-catalyst-3850-24p-e (environment) · cisco-catalyst-3850-24p-l (environment) · cisco-catalyst-3850-24p-s (environment) · cisco-catalyst-3850-24pw-s (environment) · cisco-catalyst-3850-24s-e (environment) · cisco-catalyst-3850-24s-s (environment) · cisco-catalyst-3850-24t-e (environment) · cisco-catalyst-3850-24t-l (environment) · cisco-catalyst-3850-24t-s (environment) · cisco-catalyst-3850-24u-e (environment) · cisco-catalyst-3850-24u-l (environment) · cisco-catalyst-3850-24u-s (environment) · cisco-catalyst-3850-24xs-e (environment) · cisco-catalyst-3850-24xs-s (environment) · cisco-catalyst-3850-24xu-e (environment) · cisco-catalyst-3850-24xu-l (environment) · cisco-catalyst-3850-24xu-s (environment) · cisco-catalyst-3850-32xs-e (environment) · cisco-catalyst-3850-32xs-s (environment) · cisco-catalyst-3850-48f-e (environment) · cisco-catalyst-3850-48f-l (environment) · cisco-catalyst-3850-48f-s (environment) · cisco-catalyst-3850-48p-e (environment) · cisco-catalyst-3850-48p-l (environment) · cisco-catalyst-3850-48p-s (environment) · cisco-catalyst-3850-48pw-s (environment) · cisco-catalyst-3850-48t-e (environment) · cisco-catalyst-3850-48t-l (environment) · cisco-catalyst-3850-48t-s (environment) · cisco-catalyst-3850-48u-e (environment) · cisco-catalyst-3850-48u-l (environment) · cisco-catalyst-3850-48u-s (environment) · cisco-catalyst-3850-48xs-e (environment) · cisco-catalyst-3850-48xs-f-e (environment) · cisco-catalyst-3850-48xs-f-s (environment) · cisco-catalyst-3850-48xs-s (environment) · cisco-catalyst-9300 (environment) · cisco-catalyst-9300-24p-a (environment) · cisco-catalyst-9300-24p-e (environment) · cisco-catalyst-9300-24s-a (environment) · cisco-catalyst-9300-24s-e (environment) · cisco-catalyst-9300-24t-a (environment) · cisco-catalyst-9300-24t-e (environment) · cisco-catalyst-9300-24u-a (environment) · cisco-catalyst-9300-24u-e (environment) · cisco-catalyst-9300-24ux-a (environment) · cisco-catalyst-9300-24ux-e (environment) · cisco-catalyst-9300-48p-a (environment) · cisco-catalyst-9300-48p-e (environment) · cisco-catalyst-9300-48s-a (environment) · cisco-catalyst-9300-48s-e (environment) · cisco-catalyst-9300-48t-a (environment) · cisco-catalyst-9300-48t-e (environment) · cisco-catalyst-9300-48u-a (environment) · cisco-catalyst-9300-48u-e (environment) · cisco-catalyst-9300-48un-a (environment) · cisco-catalyst-9300-48un-e (environment) · cisco-catalyst-9300-48uxm-a (environment) · cisco-catalyst-9300-48uxm-e (environment) · cisco-catalyst-9300l (environment) · cisco-catalyst-9300l-24p-4g-a (environment) · cisco-catalyst-9300l-24p-4g-e (environment) · cisco-catalyst-9300l-24p-4x-a (environment) · cisco-catalyst-9300l-24p-4x-e (environment) · cisco-catalyst-9300l-24t-4g-a (environment) · cisco-catalyst-9300l-24t-4g-e (environment) · cisco-catalyst-9300l-24t-4x-a (environment) · cisco-catalyst-9300l-24t-4x-e (environment) · cisco-catalyst-9300l-48p-4g-a (environment) · cisco-catalyst-9300l-48p-4g-e (environment) · cisco-catalyst-9300l-48p-4x-a (environment) · cisco-catalyst-9300l-48p-4x-e (environment) · cisco-catalyst-9300l-48t-4g-a (environment) · cisco-catalyst-9300l-48t-4g-e (environment) · cisco-catalyst-9300l-48t-4x-a (environment) · cisco-catalyst-9300l-48t-4x-e (environment) · cisco-catalyst-c3850-12x48u-e (environment) · cisco-catalyst-c3850-12x48u-l (environment) · cisco-catalyst-c3850-12x48u-s (environment)

Catalyst 3850-12S-E · Ciscodevice

80%

All versions

Catalyst 3850-12S-S · Ciscodevice

80%

All versions

Catalyst 3850-12Xs-E · Ciscodevice

80%

All versions

Catalyst 3850-12Xs-S · Ciscodevice

80%

All versions