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Fencer Vulns
high 8.2

CVE-2022-0080 json

Heap-based Buffer Overflow in mruby/mruby

published 2022-01-02 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-15300

cvss
8.2
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

mruby is vulnerable to Heap-based Buffer Overflow

Patch / fix

  • mruby mruby/mruby 3.1
  • mruby Debian 14, Debian 13, Debian 12 3.0.0-3

debian advisories DEBIAN-CVE-2022-0080

  • mruby openSUSE Tumbleweed 3.0.0-3.1

opensuse advisories openSUSE-SU-2024:11753-1

  • mruby Alpine 3.24, Alpine 3.23, Alpine 3.22 +5 more 3.1.0-r0

alpine advisories ALPINE-CVE-2022-0080

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
17 mo ago

Exploit prediction

1.63% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • huntr.dev https://huntr.dev/bounties/59a70392-4864-4ce3-8e35-6ac2111d1e2e referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.0 8.2 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
CISA ADP 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • mruby mruby/mruby

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow

References

Sources

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.