CVE-2024-42388
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedUse of Out-of-range Pointer Offset vulnerability in Cesanta Mongoose Web Server v7.14 allows an attacker to send an unexpected TLS packet and force the application to read unintended heap memory space.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceAn out-of-bounds read vulnerability exists in Mongoose Web Server v7.14's TLS packet handling. By sending a specially crafted TLS packet, an attacker can trigger the server to read beyond buffer boundaries, potentially exposing sensitive heap memory contents.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 7.14CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
-
Identify Mongoose versionRun 'mongoose --version' or check the binary/library version if embedded. If using a package manager, query the installed package version.Affected if The installed version is 7.14 or lower (any version up to and including 7.14)
-
Confirm TLS/SSL is enabledInspect the Mongoose configuration file or runtime settings to verify SSL/TLS is configured and active. Look for ssl:// prefix in listener URLs or ssl_certificate settings.Affected if TLS/SSL is enabled and accepting connections - the vulnerability only triggers when TLS packet handling occurs
-
Check for exposed TLS network listenersReview network listeners or check running processes to identify if Mongoose is bound to TLS-enabled network ports accessible from untrusted networks.Affected if TLS listeners are exposed to untrusted network paths (internet-facing or less trusted internal networks)
You are affected if Mongoose version is 7.14 or lower AND TLS/SSL is enabled and processing TLS packets from network sources.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpgrade to a patched version of Mongoose Web Server that includes proper bounds validation in TLS packet processing. If immediate patching is not possible, restrict TLS-facing network exposure to reduce attack surface.
Mongoose > 7.14 (confirm specific fixed version from official releases)
- 1. Identify all deployments running Mongoose Web Server version 7.14 or earlier.
- 2. Check the official Mongoose project repository or release notes for CVE-2024-42388 to confirm the fixed version.
- 3. Upgrade Mongoose to the version containing the security fix (typically a version higher than 7.14).
- 4. Test the upgraded version in a staging environment before production deployment.
- 5. Verify the TLS handshake functionality works correctly after upgrade.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,224.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-42388 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2024-42388 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data