HOMEVULNERABILITIESCVE-2023-23914
CRITICAL

CVE-2023-23914

CWE-319Published: February 23, 2023· Updated: Jun 17, 2026

9.1
CVSS v3.1

Official Description

A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality fail when multiple URLs are requested serially. Using its HSTS support, curl can be instructed to use HTTPS instead of usingan insecure clear-text HTTP step even when HTTP is provided in the URL. ThisHSTS mechanism would however surprisingly be ignored by subsequent transferswhen done on the same command line because the state would not be properlycarried on.

NVD Source

Technical Analysis

CVE-2023-23914 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.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 9.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Vendors & Products

haxx1 product(s)
curl
netapp10 product(s)
active iq unified managerclustered data ontaph300s firmwareh300sh500s firmwareh500sh700s firmwareh700sh410s firmwareh410s
splunk1 product(s)
universal forwarder
Source: NVD CPE · 13 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

ADVISORYhttps://security.gentoo.org/glsa/202310-12
ADVISORYhttps://security.netapp.com/advisory/ntap-20230309-0006/
ADVISORYhttps://security.gentoo.org/glsa/202310-12
ADVISORYhttps://security.netapp.com/advisory/ntap-20230309-0006/

All References (6)

→
https://hackerone.com/reports/1813864Exploit · Issue Tracking
→
https://security.gentoo.org/glsa/202310-12Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20230309-0006/Third Party Advisory
→
https://hackerone.com/reports/1813864Exploit · Issue Tracking
→
https://security.gentoo.org/glsa/202310-12Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20230309-0006/Third Party Advisory

Quick Facts

CVE IDCVE-2023-23914
CVSS Score9.1 / 10
SeverityCRITICAL
WeaknessCWE-319
CISA KEVNo
Affected3 vendor(s)
PublishedFeb 23, 2023

Related CVEs (CWE-319)

CVE-2025-47419
10.0
CVE-2025-4378
10.0
CVE-2026-24212
9.8
CVE-2017-15999
9.8
CVE-2018-7259
9.8
CVE-2018-6295
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-23914 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. CVE data is provided under the NVD usage policy.
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