Critical severity9.8NVD Advisory· Published Feb 1, 2021· Updated Jun 17, 2026
CVE-2020-28194
CVE-2020-28194
Description
Variable underflow exists in accel-ppp radius/packet.c when receiving a RADIUS vendor-specific attribute with length field is less than 2. It has an impact only when the attacker controls the RADIUS server, which can lead to arbitrary code execution.
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Affected products
2- accel-ppp/accel-pppdescription
Patches
Vulnerability mechanics
References
2- github.com/accel-ppp/accel-ppp/commit/e9d369aa0054312b7633e964e9f7eb323f1f3d69nvdPatchThird Party Advisory
- github.com/accel-ppp/accel-ppp/security/advisories/GHSA-2m44-rh3c-x4grnvdPatchThird Party Advisory
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