Libmicrohttpd
Vendor:
First CVE: Dec 13, 2013 · Active for 12 years
6
Total CVEs
More Total CVEs than 80% of tracked products
1.5
Avg CVEs / Year
Higher CVE frequency than 56% of tracked products
7.0
Avg CVSS
Higher Avg CVSS than 42% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Libmicrohttpd over time
Volume of CVEsAvg CVSS Base Score
First CVE
Dec 13, 2013
12 years ago
Most Recent CVE
Nov 10, 2025
256 days ago
CVE Severity & Scoring
Libmicrohttpd6 CVEs
50%
33%
17%
All CVEs352,231 CVEs
45%
40%
11%
MediumHighCritical
Attack Vector
Local0 (0.0%)
Network4 (66.7%)
Unknown2 (33.3%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low3 (50.0%)
High1 (16.7%)
Unknown2 (33.3%)
User Interaction
None4 (66.7%)
Unknown2 (33.3%)
Required0 (0.0%)
Privileges Required
Low0 (0.0%)
High0 (0.0%)
None4 (66.7%)
Unknown2 (33.3%)
Top CVEs
Signals from CVEs in this product scope (6 CVEs).
6 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2021-3466CRITICAL A flaw was found in libmicrohttpd. A missing bounds check in the post_process_urlencoded function leads to a buffer overflow, allowing a remote attacker to write arbitrary data in | Mar 25, 2021 | 9.8 | 35 | NO | NO |
CVE-2025-62689HIGH NULL pointer dereference vulnerability exists in GNU libmicrohttpd v1.0.2 and earlier. The vulnerability was fixed in commit ff13abc on the master branch of the libmicrohttpd Git r | Nov 10, 2025 | 7.5 | 25 | NO | NO |
CVE-2025-59777HIGH NULL pointer dereference vulnerability exists in GNU libmicrohttpd v1.0.2 and earlier. The vulnerability was fixed in commit ff13abc on the master branch of the libmicrohttpd Git r | Nov 10, 2025 | 7.5 | 25 | NO | NO |
CVE-2023-27371MEDIUM GNU libmicrohttpd before 0.9.76 allows remote DoS (Denial of Service) due to improper parsing of a multipart/form-data boundary in the postprocessor.c MHD_create_post_processor() m | Feb 28, 2023 | 5.9 | 20 | NO | NO |
CVE-2013-7038MEDIUM The MHD_http_unescape function in libmicrohttpd before 0.9.32 might allow remote attackers to obtain sensitive information or cause a denial of service (crash) via unspecified vect | Dec 13, 2013 | 6.4 | 20 | NO | NO |
CVE-2013-7039MEDIUM Stack-based buffer overflow in the MHD_digest_auth_check function in libmicrohttpd before 0.9.32, when MHD_OPTION_CONNECTION_MEMORY_LIMIT is set to a large value, allows remote att | Dec 13, 2013 | 5.1 | 18 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (6 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 (6 CVEs).
Media Mentions
Signals from CVEs in this product scope (6 CVEs).
Top CNAs Publishing CVEs For Libmicrohttpd
Top CWEs
Versions
| Version | CVE Count | Avg CVSS | Avg EPSS | KEV | Exploits |
|---|---|---|---|---|---|
| 0.9.70 | 1 | 9.8 | 8.7% | 0 | 0 |
| 0.9.30 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.29 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.28 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.27 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.26 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.25 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.24 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.23 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.22 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.21 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.20 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.19 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.18 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.17 | 2 | 5.8 | 2.5% | 0 | 0 |
| 0.9.16 | 2 | 5.8 | 2.5% | 0 | 0 |