CVE-2023-25211
CWE-787Published: April 7, 2023· Updated: Jun 17, 2026
Official Description
Tenda AC5 US_AC5V1.0RTL_V15.03.06.28 was discovered to contain a stack overflow via the R7WebsSecurityHandler function. This vulnerability allows attackers to cause a Denial of Service (DoS) or execute arbitrary code via a crafted payload.
Risk Analysis
A stack overflow in the Tenda AC5 security handler function could allow an attacker to execute arbitrary code or cause a denial of service. The critical CVSS score reflects the high risk of this remotely exploitable flaw.
No public exploit is currently known, and it is not in the CISA KEV. It is remotely exploitable.
Update the Tenda AC5 firmware to the latest available version.
Technical Analysis
CVE-2023-25211 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-25211 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts