CVE-2020-28194
9.8
CRITICAL · CVSS 3.1 · EPSS 3% (pctl 87)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3% — more likely to be exploited than 87% of all CVEs |
| Weakness | CWE-191 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-02-01 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| accel-ppp | accel-ppp |
References
- https://github.com/accel-ppp/accel-ppp/commit/e9d369aa0054312b7633e964e9f7eb323f1f3d69
- https://github.com/accel-ppp/accel-ppp/security/advisories/GHSA-2m44-rh3c-x4gr
- https://github.com/accel-ppp/accel-ppp/commit/e9d369aa0054312b7633e964e9f7eb323f1f3d69
- https://github.com/accel-ppp/accel-ppp/security/advisories/GHSA-2m44-rh3c-x4gr
→ the Explorer · watch your stack · NVD