CVE-2023-44448

Root code execution via unchecked stack copy

Published May 3, 2024 · Updated Aug 2, 2024

Stack-based buffer overflow in TP-Link Archer A54 firmware allows remote authenticated users on an adjacent network to execute code as root. The dm_fillObjByStr code in libcmm.so copies user-controlled data into a fixed-length stack buffer without first validating its length. Exploitation requires authenticated access from an adjacent network and grants control of the router in the root context.

CVSS severity6.8
Medium
EPSS probability0.58%
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 Archer A54 firmware allows remote authenticated users on an adjacent network to execute code as root. The dm_fillObjByStr code in libcmm.so copies user-controlled data into a fixed-length stack buffer without first validating its length. Exploitation requires authenticated access from an adjacent network and grants control of the router in the root context.

The record

CVE
CVE-2023-44448
Published
May 3, 2024
Updated
Aug 2, 2024
Vendor
TP-Link
Product
Archer A54
Classifications
CWE-121, T1068
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. May 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=-
  2. Affected versionversion=0.9.1 0.4 v0001.0 Build 211108 Rel.33223n(5553)

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

TP-Link · Archer A54version=-; version=0.9.1 0.4 v0001.0 Build 211108 Rel.33223n(5553)

Published CVSS scores

6.8Zero Day InitiativeCVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1068Exploitation for Privilege Escalation

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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