Description
A security vulnerability has been detected in happyfish100 libfastcommon up to 1.0.84. Affected by this vulnerability is the function base64_decode of the file src/base64.c. The manipulation leads to stack-based buffer overflow. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. The identifier of the patch is 82f66af3e252e3e137dba0c3891570f085e79adf. Applying a patch is the recommended action to fix this issue.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| happyfish100 | libfastcommon | 1.0.0; 1.0.1; 1.0.2; 1.0.3; 1.0.4; 1.0.5; 1.0.6; 1.0.7; 1.0.8; 1.0.9; 1.0.10; 1.0.11; 1.0.12; 1.0.13; 1.0.14; 1.0.15; 1.0.16; 1.0.17; 1.0.18; 1.0.19 |
References
- https://github.com/happyfish100/libfastcommon/Product
- https://github.com/happyfish100/libfastcommon/commit/82f66af3e252e3e137dba0c3891570f085e79adfPatch
- https://github.com/happyfish100/libfastcommon/issues/55Exploit, Vendor Advisory
- https://github.com/happyfish100/libfastcommon/issues/55#issue-3836362577Exploit, Vendor Advisory
- https://github.com/happyfish100/libfastcommon/issues/55#issuecomment-3776757848Exploit, Vendor Advisory
- https://vuldb.com/?ctiid.344598Permissions Required, VDB Entry
- https://vuldb.com/?id.344598Third Party Advisory, VDB Entry
- https://vuldb.com/?submit.743873Third Party Advisory, VDB Entry
Timeline
- Published
- Feb 6, 2026
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed