{"id":"CVE-2020-28877","url":"https://www.cyber-defence.io/tools/cve/CVE-2020-28877","generatedAt":"2026-10-27T23:28:17.156Z","title":"Buffer overflow in in the copy_msg_element function for the devDiscoverHandle server in the TP-Link WR and WDR series, including WDR7400, WDR7500, WDR7660, WDR7800, WDR8400, WDR8500, WDR8600, WDR8620, WDR8640, WDR8660, WR880N, WR886N, WR890N, WR890N,…","description":"Buffer overflow in in the copy_msg_element function for the devDiscoverHandle server in the TP-Link WR and WDR series, including WDR7400, WDR7500, WDR7660, WDR7800, WDR8400, WDR8500, WDR8600, WDR8620, WDR8640, WDR8660, WR880N, WR886N, WR890N, WR890N, WR882N, and WR708N.","published":"2020-11-20T16:15:16.000Z","lastModified":"2026-06-17T03:10:47.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-120"],"affected":["tp-link/wdr7400 firmware","tp-link/wdr7500 firmware","tp-link/wdr7660 firmware","tp-link/wdr7800 firmware","tp-link/wdr8400 firmware","tp-link/wdr8500 firmware","tp-link/wdr8600 firmware","tp-link/wdr8620 firmware","tp-link/wdr8640 firmware","tp-link/wdr8660 firmware","tp-link/wr880n firmware","tp-link/wr886n firmware","tp-link/wr890n firmware","tp-link/wr882n firmware","tp-link/wr708n firmware"],"epss":{"score":0.01198,"percentile":0.67922,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/peanuts62/TP-Link-poc","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/192112","tags":["Third Party Advisory"],"source":"nvd@nist.gov"},{"url":"https://github.com/peanuts62/TP-Link-poc","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2020-28877","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}