CVE-2022-1071
CVE-2022-1071 — User after free in mrb_vm_exec in mruby/mruby
User after free in mrb_vm_exec in GitHub repository mruby/mruby prior to 3.2.
Published Updated Sources: cvelistV5, @huntrdev
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Unreported
no source claims exploitation
EPSS
1%
chance of exploitation in 30 days
CVSS base
7.7
HIGH
Affected scope
The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.
Vendors (1)
Products (1)
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 7.7 | CVSS 3.0 | HIGH | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-416
Detection
Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.
- Search application, proxy, and WAF logs for requests touching /mruby.
References
2 on the record
- huntr.dev/bounties/6597ece9-07af-415b-809b-919ce0a17cf3
x_refsource_CONFIRM
- github.com/mruby/mruby/commit/aaa28a508903041dd7399d4159a8ace9766b022f
x_refsource_MISC
Elsewhere on this site
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.