HOMEVULNERABILITIESCVE-2024-0263
HIGH

CVE-2024-0263

CWE-404Published: January 7, 2024· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

A vulnerability was found in ACME Ultra Mini HTTPd 1.21. It has been classified as problematic. This affects an unknown part of the component HTTP GET Request Handler. The manipulation leads to denial of service. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. It is recommended to apply a patch to fix this issue. The associated identifier of this vulnerability is VDB-249819.

NVD Source

Technical Analysis

CVE-2024-0263 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 availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

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

Affected Vendors & Products

acme1 product(s)
ultra mini httpd
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

ADVISORYhttps://0day.today/exploit/description/39212
ADVISORYhttps://packetstormsecurity.com/files/176333/Ultra-Mini-HTTPd-1.21-Denial-Of-Service.html
ADVISORYhttps://vuldb.com/?ctiid.249819
ADVISORYhttps://vuldb.com/?id.249819
ADVISORYhttps://0day.today/exploit/description/39212
ADVISORYhttps://packetstormsecurity.com/files/176333/Ultra-Mini-HTTPd-1.21-Denial-Of-Service.html
ADVISORYhttps://vuldb.com/?ctiid.249819
ADVISORYhttps://vuldb.com/?id.249819

All References (10)

→
https://0day.today/exploit/description/39212Third Party Advisory
→
https://packetstormsecurity.com/files/176333/Ultra-Mini-HTTPd-1.21-Denial-Of-Service.htmlExploit · Third Party Advisory · VDB Entry
→
https://vuldb.com/?ctiid.249819Permissions Required · Third Party Advisory
→
https://vuldb.com/?id.249819Permissions Required · Third Party Advisory
→
https://www.youtube.com/watch?v=HWOGeg3e5AsExploit
→
https://0day.today/exploit/description/39212Third Party Advisory
→
https://packetstormsecurity.com/files/176333/Ultra-Mini-HTTPd-1.21-Denial-Of-Service.htmlExploit · Third Party Advisory · VDB Entry
→
https://vuldb.com/?ctiid.249819Permissions Required · Third Party Advisory
→
https://vuldb.com/?id.249819Permissions Required · Third Party Advisory
→
https://www.youtube.com/watch?v=HWOGeg3e5AsExploit

Quick Facts

CVE IDCVE-2024-0263
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-404
CISA KEVNo
Affected1 vendor(s)
PublishedJan 7, 2024

Related CVEs (CWE-404)

CVE-2023-24444
9.8
CVE-2025-5867
9.8
CVE-2018-8450
8.8
CVE-2026-11317
8.7
CVE-2026-1875
8.7
CVE-2026-1876
8.7

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2024-0263 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.
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