CVE & Vulnerability Attribution

Every piece of software has vulnerabilities. The NVD (National Vulnerability Database) catalogs them as CVEs (Common Vulnerabilities and Exposures) with CVSS severity scores. QROS matches every detected software version against the NVD and attributes CVEs to each indexed host — from banner to CVE in one job, with a global CVSS×10 score — so you know exactly which hosts are vulnerable and to what.

QROS · CVE Scan · retail-bank.example.comNVD · done
22 ssh80 http443 https6379 redis
Vulnerability reportCRITICAL
1 target · 4 ports · 3 open · 5 CVEs · worst CVSS 9.8
Global score (CVSS×10) 98/100
:6379critical · 2 CVEs
CVE-2023-25155criticalCVSS 9.8
Lua sandbox escape via cjson in Redis — unauthenticated remote RCE.

How QROS attributes CVEs

When QROS scans a host, it identifies the software running on each open port — nginx 1.18.0, OpenSSH 8.9p1, Apache 2.4.52, WordPress 6.2, Redis 7.0.5 — and matches that exact version against the NVD CVE catalog. For each match, QROS reports:

Search by CVE to find exposed hosts

QROS lets you search the entire indexed host database by CVE id. Search all hosts vulnerable to CVE-2024-6387 (OpenSSH regreSSHion), all hosts vulnerable to Log4Shell, or all hosts with critical CVEs — no login required.

What CVEs look like in a QROS host dossier

When QROS finds a vulnerable software version on a host, it shows each CVE with its CVSS score, severity, and remediation advice. Here's an example:

CVE-2024-6387 CVSS 8.1 — Critical

OpenSSH regreSSHion — Race condition in OpenSSH server (sshd) allows unauthenticated remote code execution.

CWE-362 Race Condition Affected: OpenSSH 8.5p1–9.7p1

Remediation: Upgrade to OpenSSH 9.8p1 or later. Apply vendor patches if available.

CVE-2023-38408 CVSS 9.8 — Critical

OpenSSH sshd PKCS#11 — Allows remote code execution via a crafted SSH certificate.

CWE-787 Out-of-bounds Write Affected: OpenSSH < 9.4p1

Remediation: Upgrade to OpenSSH 9.4p1 or later.

See all 16 CVEs on this host →

Why CVE attribution matters

Attackers scan the internet for vulnerable versions of known software. When a new CVE is disclosed, they exploit it within hours. QROS gives you the same visibility — you can find which of your hosts are vulnerable before attackers do, and prioritize patching by CVSS severity.

FAQ

How does QROS attribute CVEs?

QROS identifies the software and version running on each open port (from banners and web fingerprints), then matches that exact version against the NVD CVE catalog. Each match includes the CVE id, CVSS score, severity, description, weakness type (CWE), and remediation advice.

Can I search by CVE id?

Yes. Search by CVE id (e.g., cve:CVE-2024-6387) or by severity (e.g., vuln:critical) to find every indexed host running that vulnerable version — free, no login.

What is the NVD?

The NVD (National Vulnerability Database) is the U.S. government repository of standards-based vulnerability management data. It includes CVEs (Common Vulnerabilities and Exposures) with CVSS scores, CWE classifications, and reference links.

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