Libhtp
Vendor:
First CVE: Aug 28, 2017 · Active for 8 years
7
Total CVEs
More Total CVEs than 83% of tracked products
1.8
Avg CVEs / Year
Higher CVE frequency than 60% of tracked products
7.5
Avg CVSS
Higher Avg CVSS than 59% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Libhtp over time
Volume of CVEsAvg CVSS Base Score
First CVE
Aug 28, 2017
8 years ago
Most Recent CVE
Jul 23, 2025
366 days ago
CVE Severity & Scoring
Libhtp7 CVEs
14%
71%
14%
All CVEs352,294 CVEs
45%
40%
11%
MediumHighCritical
Attack Vector
Local0 (0.0%)
Network7 (100.0%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low7 (100.0%)
High0 (0.0%)
Unknown0 (0.0%)
User Interaction
None7 (100.0%)
Unknown0 (0.0%)
Required0 (0.0%)
Privileges Required
Low0 (0.0%)
High0 (0.0%)
None7 (100.0%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (7 CVEs).
7 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2018-10243CRITICAL htp_parse_authorization_digest in htp_parsers.c in LibHTP 0.5.26 allows remote attackers to cause a heap-based buffer over-read via an authorization digest header. | Apr 4, 2019 | 9.8 | 29 | NO | NO |
CVE-2025-53537HIGH LibHTP is a security-aware parser for the HTTP protocol and its related bits and pieces. In versions 0.5.50 and below, there is a traffic-induced memory leak that can starve the pr | Jul 23, 2025 | 7.5 | 26 | NO | NO |
CVE-2024-23837HIGH LibHTP is a security-aware parser for the HTTP protocol. Crafted traffic can cause excessive processing time of HTTP headers, leading to denial of service. This issue is addressed | Feb 26, 2024 | 7.5 | 22 | NO | NO |
CVE-2024-45797HIGH LibHTP is a security-aware parser for the HTTP protocol and the related bits and pieces. Prior to version 0.5.49, unbounded processing of HTTP request and response headers can lead | Oct 16, 2024 | 7.5 | 21 | NO | NO |
CVE-2024-28871HIGH LibHTP is a security-aware parser for the HTTP protocol and the related bits and pieces. Version 0.5.46 may parse malformed request traffic, leading to excessive CPU usage. Version | Apr 4, 2024 | 7.5 | 21 | NO | NO |
CVE-2019-17420MEDIUM In OISF LibHTP before 0.5.31, as used in Suricata 4.1.4 and other products, an HTTP protocol parsing error causes the http_header signature to not alert on a response with a single | Oct 10, 2019 | 5.3 | 20 | NO | NO |
CVE-2015-0928HIGH libhtp 0.5.15 allows remote attackers to cause a denial of service (NULL pointer dereference). | Aug 28, 2017 | 7.5 | 20 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (7 CVEs).
CISA KEV
0 CVEs
0.0% of CVEs· Bottom 1%
Metasploit
0 CVEs
0.0% of CVEs· Bottom 1%
Nuclei
0 CVEs
0.0% of CVEs· Bottom 1%
ExploitDB
0 CVEs
0.0% of CVEs· Bottom 1%
Social Chatter
Signals from CVEs in this product scope (7 CVEs).
Media Mentions
Signals from CVEs in this product scope (7 CVEs).
Top CNAs Publishing CVEs For Libhtp
Top CWEs
Versions
| Version | CVE Count | Avg CVSS | Avg EPSS | KEV | Exploits |
|---|---|---|---|---|---|
| 0.5.46 | 1 | 7.5 | 0.8% | 0 | 0 |
| 0.5.26 | 1 | 9.8 | 2.3% | 0 | 0 |
| 0.5.15 | 1 | 7.5 | 2.3% | 0 | 0 |