Cyber Resilience

CVE-2023-20112

Memory Safety in Cisco Business 150Ax Firmware ≤ 10.3.2.0

Published
23 March 2023
Modified
21 November 2024
Patch / advisory
CVSS Score v3.1 7.4
Click a component to see what it means
Raw vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
EPSS Score 0.0030 23th percentile
Risk Priority 53 floored blend · peak EPSS

Summary

CVE-2023-20112 is a high-severity Buffer Over-read (CWE-126) vulnerability in Cisco Business 150Ax Firmware. Its CVSS base score is 7.4 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique OS Credential Dumping (T1003); ranked at the 23th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability Data

A vulnerability in Cisco access point (AP) software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of certain parameters within 802.11 frames. An…

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attacker could exploit this vulnerability by sending a wireless 802.11 association request frame with crafted parameters to an affected device. A successful exploit could allow the attacker to cause an unexpected reload of an affected device, resulting in a DoS condition.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1003 OS Credential Dumping Credential Access
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password.
T1005 Data from Local System Collection
Adversaries may search local system sources, such as file systems, configuration files, local databases, virtual machine files, or process memory, to find files of interest and sensitive data prior to Exfiltration.
T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-20290Same vendor: Cisco
CVE-2025-20152Same vendor: Cisco
CVE-2023-20094Same vendor: Cisco
CVE-2023-20241Same vendor: Cisco
CVE-2023-20240Same vendor: Cisco
CVE-2016-6366Same vendor: Cisco
CVE-2018-0171Same vendor: Cisco
CVE-2026-0930Shared CWE-125, CWE-126
CVE-2024-7347Shared CWE-125, CWE-126
CVE-2023-21667Shared CWE-125, CWE-126

Affected Assets

cisco
business 150ax firmware
≤ 10.3.2.0
cisco
business 151axm firmware
≤ 10.3.2.0
cisco
catalyst 9105ax firmware
≤ 10.3.2.0
cisco
catalyst 9105axi firmware
≤ 10.3.2.0
cisco
catalyst 9105axw firmware
≤ 10.3.2.0
cisco
catalyst 9105i firmware
≤ 10.3.2.0
cisco
catalyst 9105w firmware
≤ 10.3.2.0
cisco
catalyst 9115 firmware
≤ 10.3.2.0
cisco
catalyst 9115ax firmware
≤ 10.3.2.0
cisco
catalyst 9115axe firmware
≤ 10.3.2.0
+21 more product configuration(s) — see NVD for full list

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 development practices directly prevent introduction of buffer over-read weaknesses.

ID.RA-01 partial match
prevents

Vulnerability identification processes can discover buffer over-read flaws via scanning or review.

PR.PS-02 partial match
prevents

Patching or replacing vulnerable software removes known instances of buffer over-read bugs.

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.

finds

Security testing in development can detect buffer over-reads before release.

A.8.15 Logging partial match
finds

Logging can record evidence of an out-of-bounds read but does not prevent the weakness itself.

prevents

Secure SDLC mandates input validation and bounds checking that can prevent buffer over-reads.

prevents

Application security requirements can specify buffer-size and bounds-checking rules.

prevents

Secure architecture principles include memory-safety and bounds-checking design choices.

prevents

Secure coding standards directly require bounds-checked buffer access, mitigating over-reads.

References