Vulnerability Details : CVE-2023-26793
libmodbus v3.1.10 has a heap-based buffer overflow vulnerability in read_io_status function in src/modbus.c.
Vulnerability category: Overflow
Products affected by CVE-2023-26793
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Exploit prediction scoring system (EPSS) score for CVE-2023-26793
0.34%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 56 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-26793
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2024-07-03 |
CWE ids for CVE-2023-26793
-
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
References for CVE-2023-26793
-
https://github.com/stephane/libmodbus/issues/683
A heap-based buffer overflow in function read_io_status in src/modbus.c · Issue #683 · stephane/libmodbus · GitHub
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