Libmodbus
Vendor:
First CVE: Jul 31, 2019 · Active for 6 years
9
Total CVEs
More Total CVEs than 86% of tracked products
2.3
Avg CVEs / Year
Higher CVE frequency than 73% of tracked products
8.0
Avg CVSS
Higher Avg CVSS than 70% of tracked products
0.0%
KEV Rate
Bottom 1%
Trends Over Time
The number and severity of CVEs published that impact Libmodbus over time
Volume of CVEsAvg CVSS Base Score
First CVE
Jul 31, 2019
6 years ago
Most Recent CVE
Feb 27, 2025
512 days ago
CVE Severity & Scoring
Libmodbus9 CVEs
11%
44%
44%
All CVEs352,231 CVEs
45%
40%
11%
MediumHighCritical
Attack Vector
Local1 (11.1%)
Network8 (88.9%)
Unknown0 (0.0%)
Physical0 (0.0%)
Adjacent Network0 (0.0%)
Attack Complexity
Low9 (100.0%)
High0 (0.0%)
Unknown0 (0.0%)
User Interaction
None8 (88.9%)
Unknown0 (0.0%)
Required1 (11.1%)
Privileges Required
Low1 (11.1%)
High0 (0.0%)
None8 (88.9%)
Unknown0 (0.0%)
Top CVEs
Signals from CVEs in this product scope (9 CVEs).
9 CVEs · Highest risk first
| CVE | Published | CVSS | Risk | KEV | Exploit |
|---|---|---|---|---|---|
CVE-2019-14463CRITICAL An issue was discovered in libmodbus before 3.0.7 and 3.1.x before 3.1.5. There is an out-of-bounds read for the MODBUS_FC_WRITE_MULTIPLE_REGISTERS case, aka VD-1301. | Jul 31, 2019 | 9.1 | 32 | NO | NO |
CVE-2019-14462CRITICAL An issue was discovered in libmodbus before 3.0.7 and 3.1.x before 3.1.5. There is an out-of-bounds read for the MODBUS_FC_WRITE_MULTIPLE_COILS case, aka VD-1302. | Jul 31, 2019 | 9.1 | 29 | NO | NO |
CVE-2024-10918CRITICAL Stack-based Buffer Overflow vulnerability in libmodbus v3.1.10 allows to overflow the buffer allocated for the Modbus response if the function tries to reply to a Modbus request wi | Feb 27, 2025 | 9.8 | 28 | NO | NO |
CVE-2023-26793CRITICAL libmodbus v3.1.10 has a heap-based buffer overflow vulnerability in read_io_status function in src/modbus.c. | May 1, 2024 | 9.8 | 27 | NO | NO |
CVE-2024-36844HIGH libmodbus v3.1.6 was discovered to contain a use-after-free via the ctx->backend pointer. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted messa | May 31, 2024 | 7.5 | 21 | NO | NO |
CVE-2024-36843HIGH libmodbus v3.1.6 was discovered to contain a heap overflow via the modbus_mapping_free() function. | May 31, 2024 | 7.5 | 20 | NO | NO |
CVE-2024-34244HIGH libmodbus v3.1.10 is vulnerable to Buffer Overflow via the modbus_write_bits function. This issue can be triggered when the function is fed with specially crafted input, which lead | May 8, 2024 | 7.5 | 20 | NO | NO |
CVE-2022-0367HIGH A heap-based buffer overflow flaw was found in libmodbus in function modbus_reply() in src/modbus.c. | Aug 29, 2022 | 7.8 | 20 | NO | NO |
CVE-2024-36845MEDIUM An invalid pointer in the modbus_receive() function of libmodbus v3.1.6 allows attackers to cause a Denial of Service (DoS) via a crafted message sent to the unit-test-server. | May 31, 2024 | 4.3 | 16 | NO | NO |
Exploit Exposure
Signals from CVEs in this product scope (9 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 (9 CVEs).
Media Mentions
Signals from CVEs in this product scope (9 CVEs).
Top CNAs Publishing CVEs For Libmodbus
Top CWEs
Versions
| Version | CVE Count | Avg CVSS | Avg EPSS | KEV | Exploits |
|---|---|---|---|---|---|
| 3.1.6 | 3 | 6.4 | 0.6% | 0 | 0 |
| 3.1.10 | 3 | 9.0 | 0.5% | 0 | 0 |