CVE-2026-2016
A security vulnerability has been detected in happyfish100 libfastcommon up to 1.0.84.
Does this matter?
Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.
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.
- 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:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.29% probability · 22th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119, CWE-121, CWE-787
- Affected
- happyfish100/libfastcommon
- Source
- cna@vuldb.com
EPSS 0.3% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.