CVE-2026-2016

LOW EPSS 17.2%
Published Feb 6, 20264mo ago · Modified Jun 17, 20262w ago
1.9 CVSS 4.0
Low
Find Similar
Published Feb 6, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
1.9
Exploitability
—
Impact
—
Vector string
CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
17.2% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 3

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer Memory Safety
CWE-121
CWE-787 Out-of-bounds Write Memory Safety

Affected Products 1

VendorProductVersionRange
happyfish100libfastcommon* ≤1.0.84

References 8

  • github.com https://github.com/happyfish100/libfastcommon/
    Product
  • github.com https://github.com/happyfish100/libfastcommon/commit/82f66af3e252e3e137dba0c3891570f085e79adf
    Patch
  • github.com https://github.com/happyfish100/libfastcommon/issues/55
    ExploitVendor Advisory
  • github.com https://github.com/happyfish100/libfastcommon/issues/55#issue-3836362577
    ExploitVendor Advisory
  • github.com https://github.com/happyfish100/libfastcommon/issues/55#issuecomment-3776757848
    ExploitVendor Advisory
  • vuldb.com https://vuldb.com/?ctiid.344598
    Permissions RequiredVDB Entry
  • vuldb.com https://vuldb.com/?id.344598
    Third Party AdvisoryVDB Entry
  • vuldb.com https://vuldb.com/?submit.743873
    Third Party AdvisoryVDB Entry

Remediation

  • github.com https://github.com/happyfish100/libfastcommon/commit/82f66af3e252e3e137dba0c3891570f085e79adf
    Patch