Medium severity4.4NVD Advisory· Published May 15, 2019· Updated Jun 17, 2026

CVE-2019-1808

Description

A vulnerability in the Image Signature Verification feature of Cisco NX-OS Software could allow an authenticated, local attacker with administrator-level credentials to install a malicious software patch on an affected device. The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by loading an unsigned software patch on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Cisco Systems, Inc./NX-OS Softwarellm-fuzzy2 versions
(expand)+ 1 more
- (no CPE)
- (no CPE)range: unspecified
Cisco Systems, Inc./Nx OS
cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*
Range: >=7.3,<8.1\(1a\)

Patches

Vulnerability mechanics

References

www.securityfocus.com/bid/108367nvdBroken LinkThird Party AdvisoryVDB Entry
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-nxos-spsvnvdVendor Advisory

News mentions

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