Description
A security vulnerability has been detected in radareorg radare2 up to 6.1.6. The affected element is the function r_str_ndup/r_str_append of the file libr/util/str.c. The manipulation leads to integer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The identifier of the patch is a20a56917ae85d732e683f8d9078bdcfee92446c. Applying a patch is the recommended action to fix this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| radareorg | radare2 | 6.1.0, 6.1.1, 6.1.2, 6.1.3, 6.1.4, 6.1.5, 6.1.6 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | radare2 | No fix yet | — |
| Ubuntu 26.04 LTS | radare2 | No fix yet | — |
| Ubuntu 25.10 | radare2 | No fix yet | — |
| Ubuntu 16.04 LTS | radare2 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | radare2 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | radare2 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | radare2 | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | radare2 | 6.2.2-bp160.1.1 | openSUSE-SU-2026:21988-1 |
Advisories 1
- openSUSE-SU-2026:21988-1 Security update for radare2 SUSE / openSUSE Security Updates · Oct 1, 2026
References
- VDB-376350 | radareorg radare2 str.c r_str_append integer overflow vdb-entry technical-description
- VDB-376350 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-14761 | CVE Analysis and Report third-party-advisory
- Submit #850385 | radareorg radare2 6.1.6 Integer Overflow third-party-advisory
- https://github.com/radareorg/radare2/issues/26045 exploit issue-tracking
- https://github.com/radareorg/radare2/commit/a20a56917ae85d732e683f8d9078bdcfee92446c patch
- https://github.com/radareorg/radare2/ product