CVE-2025-13120A vulnerability has been found in mruby up to 3.4.0.
Updated under an hour ago ()
Does this affect you?
It affects mruby. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
A vulnerability has been found in mruby up to 3.4.0. This vulnerability affects the function sort_cmp of the file src/array.c. Such manipulation leads to use after free. An attack has to be approached locally. The exploit has been disclosed to the public and may be used. The name of the patch is eb398971bfb43c38db3e04528b68ac9a7ce509bc. It is advisable to implement a patch to correct this issue.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-119, CWE-416
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Modified
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
mruby mruby mruby:mruby | through 3.4.0 | NVD |
References
- https://github.com/makesoftwaresafe/mruby/pull/263issue-tracking
- https://github.com/mruby/mruby/
- https://github.com/mruby/mruby/commit/eb398971bfb43c38db3e04528b68ac9a7ce509bcpatch
- https://github.com/mruby/mruby/issues/6649issue-tracking, vendor-advisory
- https://github.com/mruby/mruby/issues/6649#issue-3534393003issue-tracking, vendor-advisory
- https://vuldb.com/?ctiid.332325permissions-required, vdb-entry
- https://vuldb.com/?id.332325third-party-advisory, vdb-entry
- https://vuldb.com/?submit.683435third-party-advisory, vdb-entry
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.