How severe is CVE-2018-18202?

CVE-2018-18202 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-18202 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18202?

CVE-2018-18202 primarily affects Ibm Qlogic 4 Gb Fibre Channel Expansion Card Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-18202?

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

When was CVE-2018-18202 published?

CVE-2018-18202 was published on 2018-10-10 and last updated on 2026-06-17.

CVE-2018-18202

CVE-2018-18202 is a critical-severity vulnerability in Ibm Qlogic 4 Gb Fibre Channel Expansion Card Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 5.0
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ibm Qlogic 4 Gb Fibre Channel Expansion Card Firmware
Published: 2018-10-10
Last modified: 2026-06-17

Description

The QLogic 4Gb Fibre Channel 5.5.2.6.0 and 4/8Gb SAN 7.10.1.20.0 modules for IBM BladeCenter have an undocumented support account with a support password, an undocumented diags account with a diags password, and an undocumented prom account with a prom password.

Frequently asked questions

What is CVE-2018-18202?: The QLogic 4Gb Fibre Channel 5.5.2.6.0 and 4/8Gb SAN 7.10.1.20.0 modules for IBM BladeCenter have an undocumented support account with a support password, an undocumented diags account with a diags password, and an undocumented prom account with a prom password.
How severe is CVE-2018-18202?: CVE-2018-18202 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-18202 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18202?: CVE-2018-18202 primarily affects Ibm Qlogic 4 Gb Fibre Channel Expansion Card Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-18202?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-18202 published?: CVE-2018-18202 was published on 2018-10-10 and last updated on 2026-06-17.

References

http://misteralfa-hack.blogspot.com/2018/10/ibm-bladecenter-qlogic-4g-fibre-channel.html

Affected products (2)

cpe:2.3:o:ibm:qlogic_4_gb_fibre_channel_expansion_card_firmware:5.5.2.6.0:*:*:*:*:*:*:*
cpe:2.3:o:ibm:qlogic_20-port_4\/8_gb_san_switch_module_firmware:7.10.1.20.0:*:*:*:*:*:*:*