VulnerabilityModified
CVE-2023-50044
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.
CRITICAL 9.8EPSS 0.86%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.86% probability · 56th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-120
- Affected
- cesanta/mjs
- Source
- cve@mitre.org
References
- https://github.com/cesanta/mjs/issues/254Exploit, Issue Tracking
- https://github.com/cesanta/mjs/pull/255Patch
- https://github.com/cesanta/mjs/issues/254Exploit, Issue Tracking
- https://github.com/cesanta/mjs/pull/255Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.