CVE-2017-12542
CriticalExploitedPublic exploitA authentication bypass and execution of code vulnerability in HPE Integrated Lights-out 4 (iLO 4) version prior to 2.53 was found.
Published Feb 15, 2018 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2017-12542 is a critical-severity vulnerability (CVSS 10.0 v3) affecting Integrated Lights-Out 4 Firmware (Hp), Integrated Lights-out 4 (iLO 4).
- It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Apr 12, 2021 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 99% probability of exploitation in the next 30 days.
- Fixed versions are available, including Integrated Lights-Out 4 Firmware 2.53.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3
10.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
99%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
2 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2017-12542 brief as a PDF
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Description
A authentication bypass and execution of code vulnerability in HPE Integrated Lights-out 4 (iLO 4) version prior to 2.53 was found.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Apr 12, 2021 | n/a | Known |
| CIRCL KEV | Jun 30, 2026 | n/a | Not reported |
Required action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Integrated Lights-Out 4 FirmwareHp | See advisory | 2.53 |
| Integrated Lights-out 4 (iLO 4) | >= Prior to 2.53 | n/a |
Patched Releases
Integrated Lights-Out 4 Firmware
2.53
Timeline
Publicly disclosed
Feb 15, 2018
Added to Industry KEV feed
Apr 12, 2021
Last updated
Nov 21, 2024
Added to CIRCL KEV
Jun 30, 2026
References
- advisoryhttps://support.hpe.com/hpsc/doc/public/display?docId=emr_na-hpesbhf03769en_us
- advisory100467
- advisory1039222
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
A authentication bypass and execution of code vulnerability in HPE Integrated Lights-out 4 (iLO 4) version prior to 2.53 was found.
Affected: Integrated Lights-Out 4 Firmware (Hp); Integrated Lights-out 4 (iLO 4) versions >= Prior to 2.53. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed, CIRCL KEV since Apr 12, 2021 and is known to be used in ransomware campaigns.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Integrated Lights-Out 4 Firmware 2.53.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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