CVE-2022-1286 json
heap-buffer-overflow in mrb_vm_exec in mruby/mruby in mruby/mruby
published 2022-04-10 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-24616
- cvss
- 5.9
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
heap-buffer-overflow in mrb_vm_exec in mruby/mruby in GitHub repository mruby/mruby prior to 3.2. Possible arbitrary code execution if being exploited.
Patch / fix
- mruby mruby/mruby 3.2
- mruby Debian 14, Debian 13, Debian 12 3.0.0-4
debian advisories DEBIAN-CVE-2022-1286
- mruby openSUSE Tumbleweed 3.0.0-6.1
opensuse advisories openSUSE-SU-2024:12024-1
Exploit prediction
1.18% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- huntr.dev https://huntr.dev/bounties/f918376e-b488-4113-963d-ffe8716e4189 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 5.9 | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Affected products
- mruby mruby/mruby
Classification
References
-
github.com
/mruby/mruby/commit/b1d0296a937fe278239bdfac840a3fd0e93b3ee9
patch, third-party-advisory
-
huntr.dev
/bounties/f918376e-b488-4113-963d-ffe8716e4189
exploit, third-party-advisory
Sources
- CVE List CVE-2022-1286
- NVD CVE-2022-1286
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