How severe is CVE-2017-3768?

CVE-2017-3768 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-3768 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-3768?

CVE-2017-3768 primarily affects Lenova Flex System X240 M5 Firmware. In total, 42 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-3768?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-3768 published?

CVE-2017-3768 was published on 2018-01-26 and last updated on 2026-06-17.

CVE-2017-3768

CVE-2017-3768 is a high-severity vulnerability in Lenova Flex System X240 M5 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.8
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Lenova Flex System X240 M5 Firmware
Published: 2018-01-26
Last modified: 2026-06-17

Description

An unprivileged attacker with connectivity to the IMM2 could cause a denial of service attack on the IMM2 (Versions earlier than 4.4 for Lenovo System x and earlier than 6.4 for IBM System x). Flooding the IMM2 with a high volume of authentication failures via the Common Information Model (CIM) used by LXCA and OneCLI and other tools can exhaust available system memory which can cause the IMM2 to reboot itself until the requests cease.

Frequently asked questions

What is CVE-2017-3768?: An unprivileged attacker with connectivity to the IMM2 could cause a denial of service attack on the IMM2 (Versions earlier than 4.4 for Lenovo System x and earlier than 6.4 for IBM System x). Flooding the IMM2 with a high volume of authentication failures via the Common Information Model (CIM) used by LXCA and OneCLI and other tools can exhaust available system memory which can cause the IMM2 to reboot itself until the requests cease.
How severe is CVE-2017-3768?: CVE-2017-3768 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-3768 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-3768?: CVE-2017-3768 primarily affects Lenova Flex System X240 M5 Firmware. In total, 42 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-3768?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-3768 published?: CVE-2017-3768 was published on 2018-01-26 and last updated on 2026-06-17.

References

https://support.lenovo.com/us/en/product_security/LEN-14450

Affected products (42)

cpe:2.3:o:lenova:flex_system_x240_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:flex_system_x280_x6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:flex_system_x440_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:flex_system_x480_x6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:flex_system_x880_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:nextscale_nx360_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:system_x3250_m6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:system_x3500_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:system_x3550_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:system_x3650_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:system_x3750_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:system_x3850_x6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:system_x3950_x6_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenova:flex_system_x240_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:bladecenter_hs22_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:bladecenter_hs23_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:bladecenter_hs23e_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:flex_system_x220_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:flex_system_x222_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:flex_system_x240_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:flex_system_x280_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:flex_system_x440_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:flex_system_x480_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:flex_system_x880_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:idataplex_dx360_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:idataplex_dx360_m4_water_cooled_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:nextscale_nx360_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3100_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3100_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3250_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3250_m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3300_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3500_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3530_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3550_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3630_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3650_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3650_m4_bd_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3750_m4_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:system_x3850_x6_firmware:*:*:*:*:*:*:*:*

Other CWE-400 (Uncontrolled Resource Consumption) vulnerabilities

CVE-2026-46775 — Critical (CVSS 9.9): Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0.…
CVE-2025-61303 — Critical (CVSS 9.8): Hatching Triage Sandbox Windows 10 build 2004 (2025-08-14) and Windows 10 LTSC 2021(2025-08-14) contains a…
CVE-2025-43193 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7,…
CVE-2025-24269 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4. An app may be able to…
CVE-2025-24264 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4,…
CVE-2025-24260 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5,…

Browse all CWE-400 (Uncontrolled Resource Consumption) vulnerabilities →