CVE-2020-28194
CRITICAL
9.8
CVSS Score
Published: February 1, 2021 at 01:13 PM UTC
Updated: June 17, 2026 at 03:10 AM UTC
1 product affected across 1 vendorAccel Ppp
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Severity
CRITICAL9.8
Exploit prediction
EPSS 3%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 1.12.0-e9d369a
Affected range stops below 1.12.0-e9d369a, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/accel-ppp/accel-ppp/commit/e9d369aa0054312b7633e964e9f7eb323f1f3d69x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/accel-ppp/accel-ppp/security/advisories/GHSA-2m44-rh3c-x4grCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-191
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