VDB-223696 · CVE-2023-20029 · EUVD-2023-24208

Cisco IOS XE Meraki Onboarding Feature heap-based overflow

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Cisco IOS XE and classified as problematic. Affected by this vulnerability is an unknown functionality of the component Meraki Onboarding Feature. Executing a manipulation can lead to an unknown weakness. This vulnerability is handled as CVE-2023-20029. It is possible to launch the attack on the local host. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Cisco IOS XE (Router Operating System) (the affected version is unknown). This vulnerability affects an unknown code of the component Meraki Onboarding Feature. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was released 03/23/2023 as cisco-sa-iosxe-priv-esc-sABD8hcU. The advisory is shared for download at sec.cloudapps.cisco.com. This vulnerability was named CVE-2023-20029 since 10/27/2022. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-24208). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Router Operating System

Vendor

Cisco

Name

IOS XE

License

commercial

Website

Vendor: https://www.cisco.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 4.4
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/27/2022 🔍
03/23/2023 +147 days 🔍
03/23/2023 +0 days 🔍
08/17/2025 +878 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-iosxe-priv-esc-sABD8hcU
Status: Confirmed

CVE: CVE-2023-20029 (🔍)
GCVE (CVE): GCVE-0-2023-20029
GCVE (VulDB): GCVE-100-223696
EUVD: 🔍
scip Labs: https://www.scip.ch/en/?labs.20150108

Entryinfo

Created: 03/23/2023 18:03
Updated: 08/17/2025 04:39
Changes: 03/23/2023 18:03 (37), 04/13/2023 13:11 (1), 04/13/2023 13:17 (22), 08/17/2025 04:39 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.