CVSS 4.0
1.9 lowCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PCVE-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.
Severity
CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-787, CWE-119, CWE-121
- Published
- Modified
- Record from
- the NVD, synced
Affected
- happyfish100:libfastcommon
References
- https://github.com/happyfish100/libfastcommon/
- https://github.com/happyfish100/libfastcommon/commit/82f66af3e252e3e137dba0c3891570f085e79adf
- https://github.com/happyfish100/libfastcommon/issues/55
- https://github.com/happyfish100/libfastcommon/issues/55#issue-3836362577
- https://github.com/happyfish100/libfastcommon/issues/55#issuecomment-3776757848