Is CVE-2023-27346 actively exploited?

CVE-2023-27346 has no public evidence of in-the-wild exploitation as of 2025-08-06.

What is the CVSS score for CVE-2023-27346?

CVE-2023-27346 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2023-27346?

Patch guidance is available from tp-link security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-27346.

Which products are affected by CVE-2023-27346?

1 product: tp-link archer ax21 firmware.

Fix CVE-2023-27346 - HIGH tp-link archer ax21 firmware

Description

TP-Link AX1800 Firmware Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link AX1800 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of firmware images. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-19703.

CVSS Metrics

Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: adjacent network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-121

Metadata

Primary Vendor: TP-LINK
Published: 5/3/2024
Last Modified: 8/6/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2023-27346

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary