MEDIUM
CVE-2023-44386
CWE-231Published: October 5, 2023· Updated: Jun 17, 2026
5.3
CVSS v3.1
Official Description
Vapor is an HTTP web framework for Swift. There is a denial of service vulnerability impacting all users of affected versions of Vapor. The HTTP1 error handler closed connections when HTTP parse errors occur instead of passing them on. The issue is fixed as of Vapor release 4.84.2.
Technical Analysis
CVE-2023-44386 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Vendors & Products
vapor1 product(s)
vapor
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (6)
→
https://github.com/vapor/vapor/releases/tag/4.84.2Release Notes
→
https://github.com/vapor/vapor/security/advisories/GHSA-3mwq-h3g6-ffhmThird Party Advisory
→
https://github.com/vapor/vapor/releases/tag/4.84.2Release Notes
→
https://github.com/vapor/vapor/security/advisories/GHSA-3mwq-h3g6-ffhmThird Party Advisory
Quick Facts
CVE IDCVE-2023-44386
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-231
CISA KEVNo
Affected1 vendor(s)
PublishedOct 5, 2023
Related CVEs (CWE-231)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-44386 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.