CVE•Published 2026-06-04•Modified 2026-07-22•4 articles on news•4 live references•NVD data
CVE-2026-28318Solarwinds · Serv-u
Vulnerability data via NVD (ingested)
CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
95
Exploit Prediction Scoring System · top 5% of all CVEs
Weaknesses (CWE)
Description
SolarWinds Serv-U is susceptible to specially crafted POST requests that crash the Serv-U service without authentication using Content-Encoding: deflate. Mitigation steps are provided to secure customer environments in the SolarWinds Trust Center if you are unable to deploy the update
Timeline
Published 2026-06-04
Modified 2026-07-22
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-2026-28318Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Solarwinds Serv-u"All exposed Solarwinds Serv-u instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Serv-u"HTTP body or banner mentions "Serv-u" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-28318Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-28318Censys host search filtered to this CVE id.
grep.app
CVE-2026-28318Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-28318GitHub code search for direct mentions.
Google dork
"CVE-2026-28318" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (3)
CVE-2026-283183 repos
synthetic-detections/rulesYARA
AI-authored YARA + Snort/Suricata detection rules for current malware campaigns and vulnerabilities. Each rule ships with reproducible specimens, structurally-similar benign cases,…
BishopFox/CVE-2026-28318-checkPython
Safely detect whether a SolarWinds Serv-U host is vulnerable to CVE-2026-28318
EaEa0001/servu-cve-2026-28318-pocPython
SolarWinds Serv-U CVE-2026-28318: unauthenticated Content-Encoding: deflate crash. Root-cause analysis (invalid free of an interior pointer -> heap corruption) + DoS-only PoC. Fixe…