HIGH
CVE-2022-1427
CWE-125Published: April 23, 2022· Updated: Jun 17, 2026
7.8
CVSS v3.1
Official Description
Out-of-bounds Read in mrb_obj_is_kind_of in in GitHub repository mruby/mruby prior to 3.2. # Impact: Possible arbitrary code execution if being exploited.
Technical Analysis
CVE-2022-1427 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Vendors & Products
mruby1 product(s)
mruby
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (4)
→
https://github.com/mruby/mruby/commit/a4d97934d51cb88954cc49161dc1d151f64afb6bPatch · Third Party Advisory
→
https://huntr.dev/bounties/23b6f0a9-64f5-421e-a55f-b5b7a671f301Exploit · Third Party Advisory
→
https://github.com/mruby/mruby/commit/a4d97934d51cb88954cc49161dc1d151f64afb6bPatch · Third Party Advisory
→
https://huntr.dev/bounties/23b6f0a9-64f5-421e-a55f-b5b7a671f301Exploit · Third Party Advisory
Quick Facts
CVE IDCVE-2022-1427
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-125
CISA KEVNo
Affected1 vendor(s)
PublishedApr 23, 2022
Related CVEs (CWE-125)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2022-1427 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.