CVE-2022-0632
NULL Pointer Dereference in mruby/mruby
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
NULL Pointer Dereference in mruby/mruby
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
- Record
CVE-2022-0632- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
EUVDEUVD-2022-15729
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
- Record
EUVD-2022-15729- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3xxj-pcr2-rvh7 No score
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
- Record
GHSA-3xxj-pcr2-rvh7- Weakness
- CWE-476
- Updated
- 2026-11-02
NVD
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
- Record
CVE-2022-0632- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
OSVALPINE-CVE-2022-0632
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
- Record
ALPINE-CVE-2022-0632- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
OSVAZL-41314
CVE-2022-0632 affecting package rust for versions less than 1.75.0-1
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
- Record
AZL-41314- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-05
OSV
NULL Pointer Dereference in mruby/mruby
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
- Record
CVE-2022-0632- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-476
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2022-0632
NULL Pointer Dereference in Homebrew mruby prior to 3.2.
- Record
UBUNTU-CVE-2022-0632- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mrubyAlpine:v3.17 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.18 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.19 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.20 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.21 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.22 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.23 |
before 3.1.0-r0 | 3.1.0-r0 |
mrubyAlpine:v3.24 |
before 3.1.0-r0 | 3.1.0-r0 |
rustAzure Linux:3 |
before 1.75.0-1 | 1.75.0-1 |
mrubyUbuntu:16.04:LTS |
All versions, plus listed versions 1.1.0+20150817+gita1731254-11.1.0+20150906+git1cbbb7e1-11.2.0+20160315+git4f20d58a-1 |
None known |
Show 7 moreShow less
| Package | Affected | Fixed |
|---|---|---|
mrubyUbuntu:18.04:LTS |
All versions, plus listed versions 1.3.0-11.3.0+20170925+git38185028-11.3.0+20171029+git77edafb0-11.4.0-1 |
None known |
mrubyUbuntu:20.04:LTS |
All versions, plus listed versions 2.0.0-1 |
None known |
mrubyUbuntu:22.04:LTS |
All versions, plus listed versions 2.1.2-33.0.0-13.0.0-3 |
None known |
mrubyUbuntu:24.04:LTS |
All versions, plus listed versions 3.2.0-13.2.0-2 |
None known |
mrubyUbuntu:25.10 |
All versions, plus listed versions 3.3.0-1 |
None known |
mrubyUbuntu:26.10 |
All versions, plus listed versions 3.4.0-23.4.0-34.0.0-1 |
None known |
mrubyUbuntu:26.04:LTS |
All versions, plus listed versions 3.3.0-13.4.0-2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| affected, aliases, references | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2022-0632 is a medium vulnerability (CVSS 5.5) in Mruby, published February 19, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.81%, the 57th percentile. Fixed in mruby 3.1.0-r0.
References
huntr.dev/bounties/3e5bb8f6-30fd-4553-86dd-761e9459ce1b
github.com/mruby/mruby/commit/44f591aa8f7091e6ca6cb418e428ae6d4ceaf77d
nvd.nist.gov/vuln/detail/CVE-2022-0632
security.alpinelinux.org/vuln/CVE-2022-0632
ubuntu.com/security/CVE-2022-0632
cve.org/CVERecord?id=CVE-2022-0632