CVE-2019-1615

Cisco NX-OS Software Image Signature Verification Vulnerability

MEDIUM

6.7

CVSS Score

Published: March 11, 2019 at 10:00 PM UTC

Updated: June 17, 2026 at 02:28 AM UTC

47 products affected across 1 vendorNx OSNexus 9508Nexus 93120Tx

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Severity

MEDIUM6.7

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

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 image on an affected device. The vulnerability is due to improper verification of digital signatures for software images. An attacker could exploit this vulnerability by loading an unsigned software image on an affected device. A successful exploit could allow the attacker to boot a malicious software image. Note: The fix for this vulnerability requires a BIOS upgrade as part of the software upgrade. For additional information, see the Details section of this advisory. Nexus 3000 Series Switches are affected running software versions prior to 7.0(3)I7(5). Nexus 9000 Series Fabric Switches in ACI Mode are affected running software versions prior to 13.2(1l). Nexus 9000 Series Switches in Standalone NX-OS Mode are affected running software versions prior to 7.0(3)I7(5). Nexus 9500 R-Series Line Cards and Fabric Modules are affected running software versions prior to 7.0(3)F3(5).

Affected

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

Nx OS · Cisconpm

95%

12.3(0.97)7.0(3)i7(3)7.0(3)i7(5)9.2(1)

cisco-9432pq (environment) · cisco-9536pq (environment) · cisco-9636pq (environment) · cisco-9736pq (environment) · cisco-n3k-c31128pq-10ge (environment) · cisco-n3k-c3132c-z (environment) · cisco-n3k-c3164q-40ge (environment) · cisco-n3k-c3264q (environment) · cisco-n9k-x9432c-s (environment) · cisco-n9k-x9464px (environment) · cisco-n9k-x9464tx2 (environment) · cisco-n9k-x9564px (environment) · cisco-n9k-x9564tx (environment) · cisco-n9k-x9636c-r (environment) · cisco-n9k-x9636c-rx (environment) · cisco-n9k-x97160yc-ex (environment) · cisco-n9k-x9732c-ex (environment) · cisco-n9k-x9732c-fx (environment) · cisco-n9k-x9736c-ex (environment) · cisco-n9k-x9736c-fx (environment) · cisco-n9k-x9788tc-fx (environment) · cisco-nexus-92160yc-x (environment) · cisco-nexus-92300yc (environment) · cisco-nexus-92304qc (environment) · cisco-nexus-9236c (environment) · cisco-nexus-9272q (environment) · cisco-nexus-93108tc-ex (environment) · cisco-nexus-93108tc-fx (environment) · cisco-nexus-93120tx (environment) · cisco-nexus-9316d-gx (environment) · cisco-nexus-93180lc-ex (environment) · cisco-nexus-93180yc-ex (environment) · cisco-nexus-93180yc-fx (environment) · cisco-nexus-93240yc-fx2 (environment) · cisco-nexus-9332c (environment) · cisco-nexus-9336c-fx2 (environment) · cisco-nexus-9348gc-fxp (environment) · cisco-nexus-93600cd-gx (environment) · cisco-nexus-9364c (environment) · cisco-nexus-9504 (environment) · cisco-nexus-9508 (environment) · cisco-nexus-9516 (environment) · cisco-x9636q-r (environment)

Nexus 3000 · Cisco

60%

v < 7.0(3)I7(5)

Affected range stops below 7.0(3)I7(5), so it looks safe — our inference, not a vendor statement

Nexus 9000 · Cisco

60%

v < 13.2(1l)v < 7.0(3)I7(5)

Affected range stops below 13.2(1l), so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0(3)I7(5), so it looks safe — our inference, not a vendor statement

Nexus 9500 · Cisco

60%

v < 7.0(3)F3(5)