No exploitation reported

CVE-2017-8817

No exploitation reported by the sources we read.

Published2017-11-29
WeaknessCWE-125

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

The FTP wildcard function in curl and libcurl before 7.57.0 allows remote attackers to cause a denial of service (out-of-bounds read and application crash) or possibly have unspecified other impact via a string that ends with an '[' character.

Timeline

dates in UTC

2017-11-2918:29CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 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-2017-8817?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-8817?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Debian debian linux

Branch	Affected	Fixed in	Source
8.0	= 8.0	no fix published	NVD
9.0	= 9.0	no fix published	NVD

Haxx curl

Branch	Affected	Fixed in	Source
7.x	≥ 7.21.0, ≤ 7.56.1	no fix published	NVD

Haxx libcurl

Branch	Affected	Fixed in	Source
7.x	> 7.21.0, ≤ 7.56.1	no fix published	NVD

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

Fix

Advisories and patches

curl.haxx.seMitigation · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2026-04-15
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.19.82026-04-15
NVDCVSS 3.09.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
CISA-ADPweakness (CWE)CWE-1252026-04-15
NVDweakness (CWE)CWE-125read 2026-10-23
FIRST EPSSEPSS score11.2 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2017-11-29
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-8817?

Is CVE-2017-8817 actively exploited?

Active exploitation of CVE-2017-8817 has not been confirmed. Its EPSS score was 11.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-8817?

CVE-2017-8817 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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