CVE-2020-8340

MEDIUM

6.1

CVSS Score

Published: September 15, 2020 at 02:20 PM UTC

Updated: June 17, 2026 at 03:26 AM UTC

16 products affected across 2 vendorsIntegrated Management Module 2Flex System X480 X6Flex System X280 X6

Using System x IMM2 firmware for: x240, Machine Types: 7162, 2588; x440, Machine Type 7167, 2590 ; x3750 M4, Machine Type: 8753 ; x3250 M6, Machine type 3633, 3943 ; nx360 M5, Machine type 5465, 5467 ; x280/x480/x880 X6 , Machine Type 7196, 4258 ; x3850 X6 and x3950 X6, Machine type 6241 ; x3550 M5, Machine Type 5463, 8869 ; x3650 M5, Machine Type 5462, 8871; x3500 M5, Machine Type 5464, 5478 by Lenovo?

Get instant alerts when new vulnerabilities affect System x IMM2 firmware for: x240, Machine Types: 7162, 2588; x440, Machine Type 7167, 2590 ; x3750 M4, Machine Type: 8753 ; x3250 M6, Machine type 3633, 3943 ; nx360 M5, Machine type 5465, 5467 ; x280/x480/x880 X6 , Machine Type 7196, 4258 ; x3850 X6 and x3950 X6, Machine type 6241 ; x3550 M5, Machine Type 5463, 8869 ; x3650 M5, Machine Type 5462, 8871; x3500 M5, Machine Type 5464, 5478 - before attackers find them.

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Severity

MEDIUM6.1

Exploit prediction

EPSS 0.6%

Description

A cross-site scripting (XSS) vulnerability was discovered in the legacy IBM and Lenovo System x IMM2 (Integrated Management Module 2), prior to version 5.60, embedded Baseboard Management Controller (BMC) web interface during an internal security review. This vulnerability could allow JavaScript code to be executed in the user's web browser if the user is convinced to visit a crafted URL, possibly through phishing. Successful exploitation requires specific knowledge about the user’s network to be included in the crafted URL. Impact is limited to the normal access restrictions and permissions of the user clicking the crafted URL, and subject to the user being able to connect to and already being authenticated to IMM2 or other systems. The JavaScript code is not executed on IMM2 itself.

Affected

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

Integrated Management Module 2 · Lenovo

95%

v < 5.60v < 5.61

Affected range stops below 5.60, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.61, so it looks safe — our inference, not a vendor statement

lenovo-flex-system-nx360-m5 (environment) · lenovo-flex-system-x240 (environment) · lenovo-flex-system-x240-m5 (environment) · lenovo-flex-system-x280-x6 (environment) · lenovo-flex-system-x3250-m6 (environment) · lenovo-flex-system-x3500-m5 (environment) · lenovo-flex-system-x3550-m5 (environment) · lenovo-flex-system-x3650-m5 (environment) · lenovo-flex-system-x3750-m4 (environment) · lenovo-flex-system-x3850-x6 (environment) · lenovo-flex-system-x3950-x6 (environment) · lenovo-flex-system-x440 (environment) · lenovo-flex-system-x480-x6 (environment) · lenovo-flex-system-x880-x6 (environment)

Integrated Management Module 2 · IBM

60%

v < 5.60

Affected range stops below 5.60, so it looks safe — our inference, not a vendor statement

Flex System Nx360 M5 · Lenovodevice

80%

All versions

Flex System X240 · Lenovodevice

80%

All versions

Flex System X240 M5 · Lenovodevice

80%