CVE-2021-42054

Name: CVE-2021-42054
Creator: NVD / NIST
Published: 2021-10-07T06:15:07.007+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.09%

Last modified Jun 17, 2026

CVE-2021-42054 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. ACCEL-PPP 1.12.0 has an out-of-bounds read in triton_context_schedule if the client exits after authentication.. EPSS estimates a 1.09% chance of exploitation in the next 30 days.

Description

ACCEL-PPP 1.12.0 has an out-of-bounds read in triton_context_schedule if the client exits after authentication.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.09%

61.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Accel-Ppp	Accel-Ppp	1.12.0

References

https://github.com/xebd/accel-ppp/issues/156Exploit, Issue Tracking, Third Party Advisory
https://github.com/xebd/accel-ppp/issues/156Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Oct 7, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-42054?

ACCEL-PPP 1.12.0 has an out-of-bounds read in triton_context_schedule if the client exits after authentication.

How severe is CVE-2021-42054?

CVE-2021-42054 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.

How do I fix CVE-2021-42054?

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.

Are you affected by CVE-2021-42054?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST