Exploitation reportedNot in CISA KEV yetFix available

CVE-2017-12542

Q: Is CVE-2017-12542 actively exploited?

Active exploitation of CVE-2017-12542 has not been confirmed. Its EPSS score was 99.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2017-12542?

CVE-2017-12542 has a CVSS v3 base score of 10 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Exploitation reported by one source. First attested on 2026-06-30 by GCVE · shadowserver.

Published2018-02-15
Fixed in2.53

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A authentication bypass and execution of code vulnerability in HPE Integrated Lights-out 4 (iLO 4) version prior to 2.53 was found.

Timeline

dates in UTC

2018-02-1522:29CVE publishedNVD
2026-06-3013:11Listed as exploited by GCVEGCVE
2026-06-3013:11Exploitation first reportedGCVE
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-12542?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-12542?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Hp integrated lights-out 4 firmwareversion to verify

Branch	Affected	Fixed in	Source
2.53	< 2.53	2.53	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Hp integrated lights-out 4 firmware to 2.53

Advisories and patches

support.hpe.comVendor Advisory

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: EDB-44005
Proof-of-concept repositories: 4 repositories, unverifiedskelsec/CVE-2017-12542sk1dish/ilo4-rce-vuln-scannerVijayShankar22/CVE-2017-12542Gill-Singh-A/CVE-2017-12542-Exploit

Sources

GCVEexploitation2026-06-30
NVDCVSS 3.010read 2026-10-23
NVDCVSS 2.010read 2026-10-23
FIRST EPSSEPSS score99.3 %read 2026-10-23
PoC-in-GitHubproof of concept4read 2026-10-23
Exploit-DBdetectionread 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published: 2018-02-15
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-12542?

A authentication bypass and execution of code vulnerability in HPE Integrated Lights-out 4 (iLO 4) version prior to 2.53 was found.

Is CVE-2017-12542 actively exploited?

Active exploitation of CVE-2017-12542 has not been confirmed. Its EPSS score was 99.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-12542?

CVE-2017-12542 has a CVSS v3 base score of 10 (CRITICAL severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

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