synced 6 MIN AGO
01 Record

CVE-2026-3227

Authenticated Command Injection on TP-Link TL-WR802N, TL-WR841N and TL-WR840N

HighPUBLISHEDCNA: TPLink
CNA base score8.5 CVSS v4.0CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
View raw JSON

02 Description

Authenticated Command Injection on TP-Link TL-WR802N, TL-WR841N and TL-WR840N

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
2.02% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 80.8% of scored records. A rank, not a probability.
NVD base score
8.5 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD analysis status
Analyzed. NVD last modified this record on 2026-07-01.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-03-13 21:38Z7 MO AGO
Last updated
2026-07-01 17:31Z3 MO AGO
Reserved
2026-02-25
Assigning CNA
TPLink
Record state
PUBLISHED
Severity
High (CVSS 8.5)
CNA CVSS vector
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weaknesses
  • CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base
Data version
5.2
Document digest
d2de19053a3df057369e8c85af3eec2ac20d85b897440ee44b55d60f680f1a05

05 Affected products

VendorProductVersionsPlatforms
TP-Link Systems Inc.TL-WR802N v40 to < V4_260304Linux
TP-Link Systems Inc.TL-WR841N v140 to < V14_260303Linux
TP Link Systems Inc.TL-WR840N v60 to < V6_260304Linux

06 References