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CVE-2020-28194

CRITICALCVSS 9.8/10EPSS 2.70%

Last modified

CVE-2020-28194 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.70% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
2.70%

84.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Accel-PppAccel-Ppp< 1.12.0-e9d369a

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-28194?
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.
How severe is CVE-2020-28194?
CVE-2020-28194 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.70% probability of exploitation in the next 30 days.
How do I fix CVE-2020-28194?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST