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CVE-2022-1201

NULL Pointer Dereference in mrb_vm_exec with super in mruby/mruby

7.1 HighFix available

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.37%Down 0.5 points since Apr 2, 2022
90%50%10%1%

What each source reports

CVE List Score used 7.1

NULL Pointer Dereference in mrb_vm_exec with super in mruby/mruby

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

Record
CVE-2022-1201
CVSS 3.0
7.1 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness
CWE-476
Updated
2026-11-02
EUVDEUVD-2022-24541 7.1

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

Record
EUVD-2022-24541
CVSS 3.0
7.1 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Updated
2026-11-03
GitHub AdvisoriesGHSA-p2wj-9vfc-2xj7 6.5

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2....

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

Record
GHSA-p2wj-9vfc-2xj7
CVSS 3.1
6.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Weakness
CWE-476
Updated
2026-11-02
NVD 6.5

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

Record
CVE-2022-1201
CVSS 3.1
6.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVSS 3.0
7.1 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 2.0
4.9 MediumAV:L/AC:L/Au:N/C:N/I:N/A:C
Weakness
CWE-476
Updated
2026-11-02
OSVALPINE-CVE-2022-1201 6.5

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

Record
ALPINE-CVE-2022-1201
CVSS 3.1
6.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Updated
2026-11-03
OSVAZL-41093 6.5

CVE-2022-1201 affecting package rust for versions less than 1.75.0-1

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

Record
AZL-41093
CVSS 3.1
6.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Updated
2026-11-05
OSV 7.1

NULL Pointer Dereference in mrb_vm_exec with super in mruby/mruby

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

Record
CVE-2022-1201
CVSS 3.0
7.1 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness
CWE-476
Updated
2026-11-02
OSVDEBIAN-CVE-2022-1201 6.5

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

Record
DEBIAN-CVE-2022-1201
CVSS 3.1
6.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Updated
2026-11-03
OSVUBUNTU-CVE-2022-1201 6.5

NULL Pointer Dereference in mrb_vm_exec with super in GitHub repository mruby/mruby prior to 3.2. This vulnerability is capable of making the mruby interpreter crash, thus affecting the availability of the system.

Record
UBUNTU-CVE-2022-1201
CVSS 3.1
6.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVSS 3.0
7.1 HighCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
mruby
Alpine:v3.17
 before 3.1.0-r0
3.1.0-r0
mruby
Alpine:v3.18
 before 3.1.0-r0
3.1.0-r0
mruby
Alpine:v3.19
 before 3.1.0-r0
3.1.0-r0
mruby
Alpine:v3.20
 before 3.1.0-r0
3.1.0-r0
mruby
Alpine:v3.21
 before 3.1.0-r0
3.1.0-r0
mruby
Alpine:v3.22
 before 3.1.0-r0
3.1.0-r0
mruby
Alpine:v3.23
 before 3.1.0-r0
3.1.0-r0
mruby
Alpine:v3.24
 before 3.1.0-r0
3.1.0-r0
rust
Azure Linux:3
 before 1.75.0-1
1.75.0-1
mruby
Debian:12
 before 3.1.0-1
3.1.0-1
Show 10 moreShow less
Affected packages
PackageAffectedFixed
mruby
Debian:13
 before 3.1.0-1
3.1.0-1
mruby
Debian:14
 before 3.1.0-1
3.1.0-1
mruby
Ubuntu: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
mruby
Ubuntu: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
mruby
Ubuntu:20.04:LTS
 All versions, plus listed versions
2.0.0-1
 None known
mruby
Ubuntu:22.04:LTS
 All versions, plus listed versions
2.1.2-33.0.0-13.0.0-3
 None known
mruby
Ubuntu:24.04:LTS
 All versions, plus listed versions
3.2.0-13.2.0-2
 None known
mruby
Ubuntu:25.10
 All versions, plus listed versions
3.3.0-1
 None known
mruby
Ubuntu:26.10
 All versions, plus listed versions
3.4.0-23.4.0-34.0.0-1
 None known
mruby
Ubuntu:26.04:LTS
 All versions, plus listed versions
3.3.0-13.4.0-2
 None known

History

History
RecordedChangedSources
factsOSV
affected, aliases, referencesOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2022-1201 is a high vulnerability (CVSS 7.1) in Mruby, published April 2, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.37%, the 30th percentile. Fixed in mruby 3.1.0-r0.

References

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