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CVE-2022-0890

21
FAUCET Score

CVE-2022-0890 describes a NULL Pointer Dereference vulnerability in mruby versions prior to 3.2. This medium-severity flaw (CVSS 5.5) could lead to a denial-of-service condition, requiring local access and user interaction for exploitation. While the vulnerability has a low EPSS score and no known active exploitation, public exploit code, or significant community discussion, organizations using affected mruby versions should still consider patching to mitigate potential risks.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.2CPE matchmatch criteria
cpe:2.3:a:mruby:mruby:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.5MEDIUM

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.81%
Probability of exploitation in next 30 days
EPSS Percentile
53.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0081 is in the 61st percentile among its peer group of 5,765 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / mruby/mruby/commit/da48e7dbb20024c198493b8724adae1b842083aa
PatchThird Party Advisory
huntr.dev / bounties/68e09ec1-6cc7-48b8-981d-30f478c70276
ExploitPatchThird Party Advisory