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CVE-2017-12331

A vulnerability in Cisco NX-OS System Software could allow an authenticated, local attacker to bypass signature verification when loading…

Medium6.7EPSS 0.23%
Published
Updated
Reserved
Assigned by
cisco

Description

A vulnerability in Cisco NX-OS System Software could allow an authenticated, local attacker to bypass signature verification when loading a software patch. The vulnerability is due to insufficient NX-OS signature verification for software patches. An authenticated, local attacker could exploit this vulnerability to bypass signature verification and load a crafted, unsigned software patch on a targeted device. The attacker would need valid administrator credentials to perform this exploit. This vulnerability affects the following products running Cisco NX-OS System Software: Multilayer Director Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Unified Computing System Manager. Cisco Bug IDs: CSCvf16494, CSCvf23655.

Scores

CVSS scores of CVE-2017-12331, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0Medium6.7CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
0.23% · top 86% of all CVEs (2 Nov 2026)

Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.7.

Weakness

Affected products

  • Cisco NX-OS

    • affected Cisco NX-OS

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .