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CVE-2022-1934

Use After Free in mruby/mruby

5.1 Medium

Use After Free in GitHub repository mruby/mruby prior to 3.2.

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
Low
Availability
Low

Exploit likelihood

0.40%Down 0.5 points since May 31, 2022
90%50%10%1%

What each source reports

CVE List Score used 5.1

Use After Free in mruby/mruby

Use After Free in GitHub repository mruby/mruby prior to 3.2.

Record
CVE-2022-1934
CVSS 3.0
5.1 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weakness
CWE-416
Updated
2026-11-02
EUVDEUVD-2022-25203 5.1

Use After Free in GitHub repository mruby/mruby prior to 3.2.

Record
EUVD-2022-25203
CVSS 3.0
5.1 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Updated
2026-11-03
GitHub AdvisoriesGHSA-hp4r-26gw-f2r8 7.8

Use After Free in GitHub repository mruby/mruby prior to 3.2.

Use After Free in GitHub repository mruby/mruby prior to 3.2.

Record
GHSA-hp4r-26gw-f2r8
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-416
Updated
2026-11-02
NVD 7.8

Use After Free in GitHub repository mruby/mruby prior to 3.2.

Record
CVE-2022-1934
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.0
5.1 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CVSS 2.0
4.6 MediumAV:L/AC:L/Au:N/C:P/I:P/A:P
Weakness
CWE-416
Updated
2026-11-02
OSV 5.1

Use After Free in mruby/mruby

Use After Free in GitHub repository mruby/mruby prior to 3.2.

Record
CVE-2022-1934
CVSS 3.0
5.1 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Weakness
CWE-416
Updated
2026-11-02
OSVUBUNTU-CVE-2022-1934 7.8

Use After Free in GitHub repository mruby/mruby prior to 3.2.

Record
UBUNTU-CVE-2022-1934
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.0
5.1 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
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
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

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

In short

CVE-2022-1934 is a medium vulnerability (CVSS 5.1) in Mruby, published May 31, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 34th percentile. No source names a fixed version.

References

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