What is the CVSS score of CVE-2021-42054?

CVE-2021-42054 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 1.1%.

Is there a public PoC exploit available for CVE-2021-42054?

Yes, a public proof-of-concept exploit is available for CVE-2021-42054. Prioritise patching immediately. EPSS: 1.1%.

Accel Ppp CVE-2021-42054

HIGH

Out-of-bounds Read (CWE-125)

2021-10-07 cve@mitre.org

Buffer Overflow Information Disclosure Accel Ppp

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Oct 07, 2021 - 06:15 nvd

HIGH 7.5

DescriptionNVD

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

AnalysisAI

ACCEL-PPP 1.12.0 has an out-of-bounds read in triton_context_schedule if the client exits after authentication. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Read (CWE-125), which allows attackers to read data from memory outside the intended buffer boundaries. ACCEL-PPP 1.12.0 has an out-of-bounds read in triton_context_schedule if the client exits after authentication. Affected products include: Accel-Ppp.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate array indices and buffer lengths. Use memory-safe languages. Enable AddressSanitizer during testing.