CVE-2026-85384Network attack vector

Authenticated code execution via configuration parser overflow

Published Sep 8, 2026 · Updated Sep 10, 2026

Stack-based buffer overflow in TP-Link RE210 firmware allows remote authenticated users to execute code via a crafted configuration file. The httpd splitString function fails to bound data parsed from an uploaded configuration file and overwrites its stack buffer. Reachability requires an authenticated user on the local network; successful control-flow corruption grants code execution and can expose data, alter network behavior, or interrupt the device.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in TP-Link RE210 firmware allows remote authenticated users to execute code via a crafted configuration file. The httpd splitString function fails to bound data parsed from an uploaded configuration file and overwrites its stack buffer. Reachability requires an authenticated user on the local network; successful control-flow corruption grants code execution and can expose data, alter network behavior, or interrupt the device.

The record

CVE
CVE-2026-85384
Published
Sep 8, 2026
Updated
Sep 10, 2026
Vendor
TP-Link Systems Inc.
Product
TP-Link RE210
Classifications
CWE-121, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.14.2 Build 141218 Rel.36430n (EU)
  2. Affected versionversion=0 <=3.14.2 Build 171205 Rel.71984n (US)

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

TP-Link Systems Inc. · TP-Link RE210version=0 <=3.14.2 Build 141218 Rel.36430n (EU); version=0 <=3.14.2 Build 171205 Rel.71984n (US)

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1210Exploitation of Remote Services

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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