CVE-2025-7207

Name: CVE-2025-7207
Creator: NVD / NIST
Published: 2025-07-09T01:15:50.38+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 1.9/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2025-7207 is a low-severity vulnerability rated 1.9/10 on the CVSS scale. A vulnerability, which was classified as problematic, was found in mruby up to 3.4.0-rc2. Affected is the function scope_new of the file mrbgems/mruby-compiler/core/codegen.c of the component nregs Handler. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

Description

A vulnerability, which was classified as problematic, was found in mruby up to 3.4.0-rc2. Affected is the function scope_new of the file mrbgems/mruby-compiler/core/codegen.c of the component nregs Handler. The manipulation leads to heap-based buffer overflow. 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 1fdd96104180cc0fb5d3cb086b05ab6458911bb9. It is recommended to apply a patch to fix this issue.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS 4.0

1.9/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.21%

11.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Mruby	Mruby	< 3.4.0	—
Mruby	Mruby	3.4.0	Rc

References

https://github.com/mruby/mruby/commit/1fdd96104180cc0fb5d3cb086b05ab6458911bb9Patch
https://github.com/mruby/mruby/issues/6509Exploit, Issue Tracking
https://github.com/mruby/mruby/issues/6509#event-17145516649Exploit, Issue Tracking
https://github.com/user-attachments/files/19619499/mruby_crash.txtExploit
https://vuldb.com/?ctiid.315156Permissions Required, VDB Entry
https://vuldb.com/?id.315156Third Party Advisory, VDB Entry
https://vuldb.com/?submit.607683Third Party Advisory, VDB Entry
https://github.com/mruby/mruby/issues/6509Exploit, Issue Tracking

Timeline

Published: Jul 9, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-7207?

How severe is CVE-2025-7207?

CVE-2025-7207 has a CVSS score of 1.9/10 (LOW severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2025-7207?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-7207?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST