Vulnerability Details : CVE-2023-40031
Potential exploit
Notepad++ is a free and open-source source code editor. Versions 8.5.6 and prior are vulnerable to heap buffer write overflow in `Utf8_16_Read::convert`. This issue may lead to arbitrary code execution. As of time of publication, no known patches are available in existing versions of Notepad++.
Vulnerability category: Overflow
Products affected by CVE-2023-40031
- cpe:2.3:a:notepad-plus-plus:notepad\+\+:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-40031
0.29%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 52 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-40031
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
GitHub, Inc. |
CWE ids for CVE-2023-40031
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: security-advisories@github.com (Primary)
-
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: security-advisories@github.com (Primary)
References for CVE-2023-40031
-
https://securitylab.github.com/advisories/GHSL-2023-092_Notepad__/
GHSL-2023-112, GHSL-2023-102, GHSL-2023-103, GHSL-2023-092: Buffer Overflows in Notepad++ - CVE-2023-40031, CVE-2023-40036, CVE-2023-40164, CVE-2023-40166 | GitHub Security LabExploit;Third Party Advisory
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