CVE-2023-43627

System-file modification via crafted traversal request

Published Oct 3, 2023 · Updated Sep 20, 2024

Path traversal in FURUNO SYSTEMS ACERA 1310 and ACERA 1320 firmware 01.26 and earlier allows remote authenticated users to alter system files. FURUNO SYSTEMS states that a crafted request modifies critical information but does not identify the request handler, path parameter, or missing pathname restriction. Access must be network-adjacent, authenticated, and directed at a device operating in ST mode; the bounded consequence is modification of critical information.

CVSS severity5.7
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in FURUNO SYSTEMS ACERA 1310 and ACERA 1320 firmware 01.26 and earlier allows remote authenticated users to alter system files. FURUNO SYSTEMS states that a crafted request modifies critical information but does not identify the request handler, path parameter, or missing pathname restriction. Access must be network-adjacent, authenticated, and directed at a device operating in ST mode; the bounded consequence is modification of critical information.

The record

CVE
CVE-2023-43627
Published
Oct 3, 2023
Updated
Sep 20, 2024
Vendor
FURUNO SYSTEMS Co., Ltd.
Product
ACERA 1320
Classifications
CWE-22, T1565.001
Attack vector
adjacent
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 20, 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=firmware ver.01.26 and earlier

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesauthenticated

What is affected?

FURUNO SYSTEMS Co., Ltd. · ACERA 1320version=firmware ver.01.26 and earlier
FURUNO SYSTEMS Co., Ltd. · ACERA 1310version=firmware ver.01.26 and earlier

Published CVSS scores

5.7NIST NVDCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
6.8JPCERT/CCCVSS:3.1/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.

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

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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1565.001Stored Data Manipulation

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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