CVE-2026-30816Public exploit

Authenticated file disclosure via restored sed script

Published Apr 8, 2026 · Updated Apr 8, 2026

External file-path control in TP-Link Archer AX53 v1.0 before 1.7.1 Build 20260213 allows attackers to read device files via a crafted backup. A restored certificate archive can overwrite /etc/openvpn/crt.sed, which build-ovpn-crt later executes as a sed program while exporting an OpenVPN client profile. Administrative access from an adjacent network is required to upload the backup and invoke OpenVPN export; selected file contents are returned in the exported profile.

CVSS severity6.8
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

External file-path control in TP-Link Archer AX53 v1.0 before 1.7.1 Build 20260213 allows attackers to read device files via a crafted backup. A restored certificate archive can overwrite /etc/openvpn/crt.sed, which build-ovpn-crt later executes as a sed program while exporting an OpenVPN client profile. Administrative access from an adjacent network is required to upload the backup and invoke OpenVPN export; selected file contents are returned in the exported profile.

The record

CVE
CVE-2026-30816
Published
Apr 8, 2026
Updated
Apr 8, 2026
Vendor
TP-Link Systems Inc.
Product
Archer AX53
Classifications
CWE-610, CWE-15, CWE-73, T1005
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

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

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <1.7.1 Build 20260213

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

TP-Link Systems Inc. · Archer AX53version=0 <1.7.1 Build 20260213

Published CVSS scores

5.7NIST NVDCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.8TP-Link Systems Inc.CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.8Cisco TalosCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-610Externally Controlled Reference to a Resource in Another Sphere
CWE-15External Control of System or Configuration Setting
CWE-73External Control of File Name or Path
T1005Data from Local System

Public exploit references

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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