ExploitedIn CISA KEVFix available

CVE-2017-17562

Q: Is CVE-2017-17562 actively exploited?

Yes. CVE-2017-17562 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-06-10.

Q: What is the CVSS score for CVE-2017-17562?

CVE-2017-17562 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Exploitation confirmed. First attested on 2021-12-10 by CISA-ADP, CISA KEV, GCVE · kevintel, GCVE · shadowserver.

Published2017-12-12

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

Embedthis GoAhead before 3.6.5 allows remote code execution if CGI is enabled and a CGI program is dynamically linked. This is a result of initializing the environment of forked CGI scripts using untrusted HTTP request parameters in the cgiHandler function in cgi.c. When combined with the glibc dynamic linker, this behaviour can be abused for remote code execution using special parameter names such as LD_PRELOAD. An attacker can POST their shared object payload in the body of the request, and reference it using /proc/self/fd/0.

Timeline

dates in UTC

2017-12-1219:29CVE publishedNVD
2021-12-10Listed as exploited by GCVEGCVE
2021-12-10Exploitation first reportedCISA KEV
2021-12-10Added to the CISA KEV catalogCISA KEV
2025-02-0420:55SSVC exploitation set to activeCISA-ADP
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-2017-17562?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-17562?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Oracle integrated lights out manager

Branch	Affected	Fixed in	Source
3.0	= 3.0	no fix published	NVD
4.0	= 4.0	no fix published	NVD

Embedthis goahead

Branch	Affected	Fixed in	Source
3.6	< 3.6.5	3.6.5	NVD

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

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-22-090-06 CISA4 known affected
General Electric Renewable Energy MDS Radios
iNET/iNET II series radio: firmware versions prior to rev. 8.3.0 · SD series radio: firmware versions prior to rev. 6.4.7 · TD220MAX series radio: firmware versions prior to rev. 1.2.6 · +1 more

Full record on NVD

Fix

CISA’s required action: Apply updates per vendor instructions.due 2022-06-10
Vendor fix CISA ICSA-22-090-06 · 4 productsTD220X series radio firmware rev. 2.0.16
Mitigation from the vendor CISA ICSA-22-090-06 · 4 productsiNET/iNET II series radio firmware rev.8.3.0
Mitigation from the vendor CISA ICSA-22-090-06 · 4 productsSD series radio firmware rev. 6.4.7
Mitigation from the vendor CISA ICSA-22-090-06 · 4 productsTD220MAX series radio firmware rev. 1.2.6
Mitigation from the vendor CISA ICSA-22-090-06 · 4 productsGE also recommends the use of other protections inside the radio such as MAC address allow-listing, IEEE 802.1x authentication, or encrypt traffic at the application level with protocols such as HTTPS or SSH. GE provides additional mitigations and information about these vulnerabilities in GE publi…

Advisories and patches

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 5 repositories, unverified1337g/CVE-2017-17562ivanitlearning/CVE-2017-17562crispy-peppers/Goahead-CVE-2017-17562nu11pointer/goahead-rce-exploitjoaomagfreitas/bash-CVE-2017-17562

CISA Known Exploited Vulnerability

Date Added: 2021-12-10
Patch Due Date: 2022-06-10
Ransomware Use: Unknown
Required Action: Apply updates per vendor instructions.

Sources

CISA KEVKEV entry2021-12-10
GCVEexploitation2021-12-10
CISA-ADPSSVC decisionactive2025-02-04
OpenCVESSVC decisionactive—
CISA-ADPCVSS 3.18.12025-02-04
NVDCVSS 3.18.1read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
FIRST EPSSEPSS score97.1 %read 2026-10-23
PoC-in-GitHubproof of concept5read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2017-12-12
Last Modified: 2026-06-17
NVD status: Analyzed

Frequently asked questions

What is CVE-2017-17562?

Is CVE-2017-17562 actively exploited?

Yes. CVE-2017-17562 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2022-06-10.

What is the CVSS score for CVE-2017-17562?

CVE-2017-17562 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

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