CVE Tools

CVE-2021-23372

Denial of Service (DoS)

No known exploitation. EPSS puts it in the 59th percentile. Fixed in unspecified.

Published Updated Sources: CVE.org, NVD, GitHub

What to do

Find your product and version, then upgrade to the build on the right.

  • N/a Mongo-expressAffected: < unspecifiedUpgrade to: unspecifiedStated by: CVE record
  • Npm Mongo-expressAffected: ≤ 0.54.0Upgrade to: after 0.54.0Stated by: GitHub advisory

Versions as the sources state them. Full version matrix after sign-in

What it is

From the CVE record

All versions of package mongo-express are vulnerable to Denial of Service (DoS) when exporting an empty collection as CSV, due to an unhandled exception, leading to a crash.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS59th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.9% chance of exploitation activity in the next 30 days, which ranks it in the 59th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

3 events over 1318 days, from the signal feeds we watch.

  1. Record updated
  2. Publishedweakness classified

Affected products

Technical detail

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

Scored 4.4 by NVD.

How it is reached

  • Attack Vector NetworkExploitable remotely over the network without any special conditions
  • Attack Complexity HighRequires specific conditions like a race condition or non-default configuration
  • Privileges Required HighRequires admin or elevated privileges
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality NoneNo confidentiality impact
  • Integrity NoneNo integrity impact
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

Sources

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We'll flag the next CVE, public exploit or patch for Mongo-express, not every advisory.