CVE-2026-2016A security vulnerability has been detected in happyfish100 libfastcommon up to 1.0.84.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-119, CWE-121, CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
happyfish100 libfastcommon happyfish100:libfastcommon | through 1.0.84 | NVD |
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
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.