CVE-2021-45989 is a stack overflow vulnerability in Tenda G1 and G3 routers (v15.11.0.17(9502)_CN) within the guestWifiRuleRefresh function. Attackers can exploit this remotely without authentication by manipulating the qosGuestUpstream and qosGuestDownstream parameters, leading to a Denial of Service (DoS). This vulnerability is rated 7.5 HIGH on the CVSS scale, indicating a significant impact on availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
15.11.0.17\(9502\)_cnCPE matchmatch criteria | cpe:2.3:o:tendacn:g1_firmware:15.11.0.17\(9502\)_cn:*:*:*:*:*:*:* | ||
15.11.0.17\(9502\)_cnCPE matchmatch criteria | cpe:2.3:o:tendacn:g3_firmware:15.11.0.17\(9502\)_cn:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.