CVE-2021-3125
In TP-Link TL-XDR3230 < 1.0.12, TL-XDR1850 < 1.0.9, TL-XDR1860 < 1.0.14, TL-XDR3250 < 1.0.2, TL-XDR6060 Turbo < 1.1.8, TL-XDR5430 < 1.0.11, and possibly others, when IPv6 is used, a routing loop can occur that generates excessive network traffic between…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In TP-Link TL-XDR3230 < 1.0.12, TL-XDR1850 < 1.0.9, TL-XDR1860 < 1.0.14, TL-XDR3250 < 1.0.2, TL-XDR6060 Turbo < 1.1.8, TL-XDR5430 < 1.0.11, and possibly others, when IPv6 is used, a routing loop can occur that generates excessive network traffic between an affected device and its upstream ISP's router. This occurs when a link prefix route points to a point-to-point link, a destination IPv6 address belongs to the prefix and is not a local IPv6 address, and a router advertisement is received with at least one global unique IPv6 prefix for which the on-link flag is set.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.50% probability · 73th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-834
- Affected
- tp-link/tl-xdr3230 firmware · tp-link/tl-xdr5430 firmware · tp-link/tl-xdr3250 firmware · tp-link/tl-xdr1860 firmware · tp-link/tl-xdr1850 firmware · tp-link/tl-xdr6060 firmware
- Source
- cve@mitre.org
References
- https://service.tp-link.com.cn/detail_download_8719.htmlVendor Advisory
- https://service.tp-link.com.cn/detail_download_8720.htmlVendor Advisory
- https://service.tp-link.com.cn/detail_download_8722.htmlVendor Advisory
- https://service.tp-link.com.cn/detail_download_8723.htmlVendor Advisory
- https://service.tp-link.com.cn/detail_download_8724.htmlVendor Advisory
- https://service.tp-link.com.cn/detail_download_8725.htmlVendor Advisory
- https://service.tp-link.com.cn/detail_download_8719.htmlVendor Advisory
- https://service.tp-link.com.cn/detail_download_8720.htmlVendor Advisory
- https://service.tp-link.com.cn/detail_download_8722.htmlVendor Advisory
- https://service.tp-link.com.cn/detail_download_8723.htmlVendor Advisory
- https://service.tp-link.com.cn/detail_download_8724.htmlVendor Advisory
- https://service.tp-link.com.cn/detail_download_8725.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.