CVE-2022-0632 json
NULL Pointer Dereference in mruby/mruby
published 2022-02-19 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-15729
- cvss
- 5.5
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 57%
- public exploits
- 0
- none known
Summary
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
Patch / fix
- mruby mruby/mruby 3.2
- mruby Alpine 3.24, Alpine 3.23, Alpine 3.22 +5 more 3.1.0-r0
alpine advisories ALPINE-CVE-2022-0632
Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Exploit prediction
0.81% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.dev https://huntr.dev/bounties/3e5bb8f6-30fd-4553-86dd-761e9459ce1b referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 5.5 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:N/A:P |
Affected products
- mruby mruby/mruby
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
-
github.com
/mruby/mruby/commit/44f591aa8f7091e6ca6cb418e428ae6d4ceaf77d
patch, third-party-advisory
-
huntr.dev
/bounties/3e5bb8f6-30fd-4553-86dd-761e9459ce1b
exploit, patch, third-party-advisory
Sources
- CVE List CVE-2022-0632
- NVD CVE-2022-0632
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.