CVE-2025-58077Public exploit

Authenticated adjacent code execution via unbounded host entries

Published Feb 3, 2026 · Updated Feb 3, 2026

Heap overflow in tmpServer in TP-Link Archer AX53 v1.0 through 1.3.1 Build 20241120 allows authenticated adjacent attackers to execute code. Opcode 0x437 passes comma-delimited parental-control hostnames to libxt_pctl.so, where handle_host_entry increments an unchecked count and copies entries into fixed 0x41-byte slots beyond the heap allocation. Exploitation requires high-privileged authentication and access through the HomeShield cloud tunnel to tmpServer on localhost; demonstrated impact is an iptables process crash, with code execution possible.

CVSS severity7.3
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap overflow in tmpServer in TP-Link Archer AX53 v1.0 through 1.3.1 Build 20241120 allows authenticated adjacent attackers to execute code. Opcode 0x437 passes comma-delimited parental-control hostnames to libxt_pctl.so, where handle_host_entry increments an unchecked count and copies entries into fixed 0x41-byte slots beyond the heap allocation. Exploitation requires high-privileged authentication and access through the HomeShield cloud tunnel to tmpServer on localhost; demonstrated impact is an iptables process crash, with code execution possible.

The record

CVE
CVE-2025-58077
Published
Feb 3, 2026
Updated
Feb 3, 2026
Vendor
TP-Link Systems Inc.
Product
Archer AX53
Classifications
CWE-122, T1210
Attack vector
adjacent
Privileges
admin

Timeline

How it unfolded

  1. Feb 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 3, 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 <=1.3.1 Build 20241120

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesadmin

What is affected?

TP-Link Systems Inc. · Archer AX53version=0 <=1.3.1 Build 20241120

Published CVSS scores

7.3TP-Link Systems Inc.CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.1Cisco TalosCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

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)
Vectoradjacent
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1210Exploitation of Remote Services

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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