CVE-2026-2016
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.
Published:Feb 6, 2026
Last Modified:Apr 18, 2026
EPS:Feb 6, 2026
EPSS Score:0.00016
CVSS Score:5.3
Affected Products
Vendor
Product
Action
Vendor
Happyfish100
Product
Libfastcommon
Happyfish100
Libfastcommon
Exploits
Common Weakness Enumeration
Common Attack Pattern Enumeration and Classification (CAPEC)
References
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
