Cyber Resilience

CVE-2023-24511

Arista Eos 4.26.0 – 4.26.10m

Public PoC
Published
12 April 2023
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 5.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score 0.0084 54th percentile
Risk Priority 46 floored blend · peak EPSS

Summary

CVE-2023-24511 is a medium-severity Missing Release of Memory after Effective Lifetime (CWE-401) vulnerability in Arista Eos. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Endpoint Denial of Service (T1499); ranked in the top 46% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability Data

On affected platforms running Arista EOS with SNMP configured, a specially crafted packet can cause a memory leak in the snmpd process. This may result in the snmpd processing being terminated (causing SNMP requests to time out until snmpd is…

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automatically restarted) and potential memory resource exhaustion for other processes on the switch. The vulnerability does not have any confidentiality or integrity impacts to the system.

CWE(s)
CWE-401

Related Threats

MITRE ATT&CK Enterprise Techniques

T1499 Endpoint Denial of Service Impact
Adversaries may perform Endpoint Denial of Service (DoS) attacks to degrade or block the availability of services to users.
attack.mitre.org →
T1499.003 Application Exhaustion Flood Impact
Adversaries may target resource intensive features of applications to cause a denial of service (DoS), denying availability to those applications.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-24510Same product: Arista 7010T
CVE-2023-24512Same product: Arista 7010T-48
CVE-2026-46102Shared CWE-401
CVE-2026-53227Shared CWE-401
CVE-2025-30658Shared CWE-401
CVE-2025-37874Shared CWE-401
CVE-2025-46686Shared CWE-401
CVE-2023-44193Shared CWE-401
CVE-2023-22395Shared CWE-401
CVE-2023-2618Shared CWE-401

Affected Assets

arista
eos
4.26.0 — 4.26.10m · 4.27.0 — 4.27.9m · 4.28.0 — 4.28.6m

Mitigating Controls

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly enforce proper memory allocation/deallocation via coding standards, reviews, and tooling.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development can detect unreleased memory, providing partial coverage of the weakness.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates memory-management practices that reduce missing-release defects.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify explicit memory-release rules, partially mitigating the weakness.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure system architecture and engineering principles include resource-management guidelines that address memory leaks.

A.8.28 Secure coding partial match
prevents

Secure coding standards directly require proper allocation/deallocation, covering most of this weakness.

A.8.6 Capacity management partial match
finds

Capacity management may detect memory exhaustion symptoms but does not prevent the coding flaw.

References