How severe is CVE-2017-3752?

CVE-2017-3752 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.

Is CVE-2017-3752 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-3752?

CVE-2017-3752 primarily affects Lenovo Fabric Cn4093 10gb Firmware. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-3752?

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-2017-3752 published?

CVE-2017-3752 was published on 2017-08-09 and last updated on 2026-06-17.

CVE-2017-3752

CVE-2017-3752 is a high-severity vulnerability in Lenovo Fabric Cn4093 10gb Firmware with a CVSS 3.x base score of 8.2. 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-20.

Key facts

Severity: High (CVSS 3.x base score 8.2)
CVSS v2: 4.3
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Lenovo Fabric Cn4093 10gb Firmware
Published: 2017-08-09
Last modified: 2026-06-17

Description

An industry-wide vulnerability has been identified in the implementation of the Open Shortest Path First (OSPF) routing protocol used on some Lenovo switches. Exploitation of these implementation flaws may result in attackers being able to erase or alter the routing tables of one or many routers, switches, or other devices that support OSPF within a routing domain.

Frequently asked questions

What is CVE-2017-3752?: An industry-wide vulnerability has been identified in the implementation of the Open Shortest Path First (OSPF) routing protocol used on some Lenovo switches. Exploitation of these implementation flaws may result in attackers being able to erase or alter the routing tables of one or many routers, switches, or other devices that support OSPF within a routing domain.
How severe is CVE-2017-3752?: CVE-2017-3752 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over an adjacent network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability high.
Is CVE-2017-3752 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-3752?: CVE-2017-3752 primarily affects Lenovo Fabric Cn4093 10gb Firmware. In total, 25 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-3752?: 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-2017-3752 published?: CVE-2017-3752 was published on 2017-08-09 and last updated on 2026-06-17.

References

Affected products (25)

cpe:2.3:o:ibm:1g_l2-7_slb:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:1\:10g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:layer_2\/3_copper_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:virtual_fabric_10gb:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:en2092_1gb_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:fabric_cn4093_10gb_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:fabric_en4093\/en4093r_10gb_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:g8052_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:g8124_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:g8124e_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:g8264_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:g8264cs_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:g8264t_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:g8316_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:ibm:g8332_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:fabric_cn4093_10gb_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:fabric_en4093r_10gb_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:si4091_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:g8052_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:g8124e_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:g8264_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:g8264cs_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:g8272_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:g8296_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:g8332_firmware:*:*:*:*:*:*:*:*

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