CVE-2023-50044
Buffer Overflow vulnerability in Cesanta MJS version 2.22.0, allows attackers to execute...
Cesanta MJS 2.20.0 has a getprop_builtin_foreign out-of-bounds read if a Built-in API name occurs in a substring of an input string.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Cesanta MJS 2.20.0 has a getprop_builtin_foreign out-of-bounds read if a Built-in API name occurs in a substring of an input string.
- Record
CVE-2023-50044- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
CVE List No score
Cesanta MJS 2.20.0 has a getprop_builtin_foreign out-of-bounds read if a Built-in API name occurs in a substring of an input string.
- Record
CVE-2023-50044- Updated
- 2026-11-02
EUVDEUVD-2023-54874 No score
Cesanta MJS 2.20.0 has a getprop_builtin_foreign out-of-bounds read if a Built-in API name occurs in a substring of an input string.
- Record
EUVD-2023-54874- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5x2j-8rm7-fm3j
Buffer Overflow vulnerability in Cesanta MJS version 2.22.0, allows attackers to execute...
Buffer Overflow vulnerability in Cesanta MJS version 2.22.0, allows attackers to execute arbitrary code, cause a denial of service (Dos), and obtain sensitive information via segmentation fault can occur in getprop_builtin_foreign when input string includes a name of Built-in APIs.
- Record
GHSA-5x2j-8rm7-fm3j- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-50044 is a critical vulnerability (CVSS 9.8) in Cesanta Mjs, published December 20, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.86%, the 58th percentile. No source names a fixed version.