High severity · published Jan 27, 2022
CVE-2021-46513
Cesanta MJS v2.20.0 was discovered to contain a global buffer overflow via mjs_mk_string at mjs/src/mjs_string.c
7.8
CVSS
0.7%
EPSS
No
On KEV
Description
Cesanta MJS v2.20.0 was discovered to contain a global buffer overflow via mjs_mk_string at mjs/src/mjs_string.c.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MJ
Mjs · Cesanta
2.20.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-46513
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-46513
Exploit
https://github.com/cesanta/mjs/issues/189
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