CVE•Published 2017-11-23•Modified 2026-10-14•1 article on news•5 live references•NVD data
CVE-2017-16931Xmlsoft · Libxml2
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
91
Exploit Prediction Scoring System · top 9% of all CVEs
Description
parser.c in libxml2 before 2.9.5 mishandles parameter-entity references because the NEXTL macro calls the xmlParserHandlePEReference function in the case of a '%' character in a DTD name.
Timeline
Published 2017-11-23
Modified 2026-10-14
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2017-16931Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Xmlsoft Libxml2"All exposed Xmlsoft Libxml2 instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Libxml2"HTTP body or banner mentions "Libxml2" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2017-16931Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2017-16931Censys host search filtered to this CVE id.
grep.app
CVE-2017-16931Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2017-16931GitHub code search for direct mentions.
Google dork
"CVE-2017-16931" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (5)
CVE-2017-169315 repos
Manavarya09/public-apis-liveTypeScript
Every public API in one place — aggregated, deduped, and auto-checked for reachability. Refreshed daily. npm + Claude plugin + live search.
hiifong/starListPython
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clay-good/encryptalottaHTML
Encryptalotta is a 100% private, client-side PGP suite that enables secure key generation, file and text encryption, and digital signing directly in your browser with zero server u…
ScaleDockHQ/scaledock-skillsJavaScript
Agent skills we use across ScaleDock products
cpubyteofficial/The-Ultimate-Free-API-Mega-Listunknown
A curated list of free public APIs, open-source APIs, REST APIs, and developer tools across 50+ categories, with documentation, authentication, and pricing details.