Buffer overflow in TP-Link Archer Ax21
CVE-2023-27346
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.007 (51.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- TP-Link Archer Ax21 — versions 3.0
- TP-Link Archer Ax21 Firmware — versions 1.1.1
- TP-Link Ax1800 — versions Archer AX21(US)_V3_1.1.1 Build 20220603
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-23-377/ (x_research-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-27346?
- CVE-2023-27346 is a high-severity vulnerability in TP-Link Archer Ax21, classified under Stack-based Buffer Overflow. CVSS score: 8.8/10. Published 2024-05-03.
- How severe is CVE-2023-27346?
- High severity. CVSS v3 base score is 8.8 out of 10.