Vulnerability · Published Apr 10, 2022 · Assigned by @huntrdev
CVE-2022-1276Out-of-bounds Read in mrb_get_args in mruby/mruby
High 8.4
In plain English
A high-severity out-of-bounds read in mruby/mruby from mruby. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities).
Severity (CVSS 3.0)8.4High
Exploit odds (30 days)1.6%top 24.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Out-of-bounds Read in mrb_get_args in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | mruby | no fix listed | UBUNTU-CVE-2022-1276 |
| Ubuntu:24.04:LTS | mruby | no fix listed | UBUNTU-CVE-2022-1276 |
| Ubuntu:25.10 | mruby | no fix listed | UBUNTU-CVE-2022-1276 |
| Ubuntu:26.04:LTS | mruby | no fix listed | UBUNTU-CVE-2022-1276 |
| Ubuntu:26.10 | mruby | no fix listed | UBUNTU-CVE-2022-1276 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| mruby | mruby/mruby | unspecified – before 3.2 |
Weakness: CWE-125 · Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://huntr.dev/bounties/6ea041d1-e2aa-472c-bf3e-da5fa8726c25 x_refsource_CONFIRM
- https://github.com/mruby/mruby/commit/c8c083cb750606b2da81582cd8e43b442bb143e6 x_refsource_MISC