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Full vulnerability report · 2023
CVE-2023-39429High confidence

Cross-site scripting vulnerability in FURUNO SYSTEMS wireless LAN access point devices allows an authenticated user to inject an arbitrary script via a crafted configuration

FURUNO SYSTEMS Co.,Ltd. · ACERA 1210

5.4MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.35% for the current model date.

Compensating controls

  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs FURUNO SYSTEMS Co.,Ltd. ACERA 1210 and falls inside the recorded affected range.
  2. Recheck the vendor advisory before scheduling a change because no verified fixed version is currently retained.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2023-43153

No EUVD known-exploited evidence

ENISA has published the identifier mapping but no EUVD description has been stored yet.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
Not supplied in the stored EUVD record
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Fix not verified
01

What, why and how

Cross-site scripting vulnerability in FURUNO SYSTEMS wireless LAN access point devices allows an authenticated user to inject an arbitrary script via a crafted configuration. Affected products and versions are as follows: ACERA 1210 firmware ver.02.36 and earlier, ACERA 1150i firmware ver.01.35 and earlier, ACERA 1150w firmware ver.01.35 and earlier, ACERA 1110 firmware ver.01.76 and earlier, ACERA 1020 firmware ver.01.86 and earlier, ACERA 1010 firmware ver.01.86 and earlier, ACERA 950 firmware ver.01.60 and earlier, ACERA 850F firmware ver.01.60 and earlier, ACERA 900 firmware ver.02.54 and earlier, ACERA 850M firmware ver.02.06 and earlier, ACERA 810 firmware ver.03.74 and earlier, and ACERA 800ST firmware ver.07.35 and earlier. They are affected when running in ST(Standalone) mode.

What

Cross-site scripting vulnerability in FURUNO SYSTEMS wireless LAN access point devices allows an authenticated user to inject an arbitrary script via a crafted configuration. Affected products and versions are as follows: ACERA 1210 firmware ver.02.36 and earlier, ACERA 1150i firmware ver.01.35 and earlier, ACERA 1150w firmware ver.01.35 and earlier, ACERA 1110 firmware ver.01.76 and earlier, ACERA 1020 firmware ver.01.86 and earlier, ACERA 1010 firmware ver.01.86 and earlier, ACERA 950 firmware ver.01.60 and earlier, ACERA 850F firmware ver.01.60 and earlier, ACERA 900 firmware ver.02.54 and earlier, ACERA 850M firmware ver.02.06 and earlier, ACERA 810 firmware ver.03.74 and earlier, and ACERA 800ST firmware ver.07.35 and earlier. They are affected when running in ST(Standalone) mode.

Why

Attacker-controlled content can reach a browser as executable script without sufficient output encoding or sanitisation.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Cross-site scripting vulnerability in FURUNO SYSTEMS wireless LAN access point devices allows an authenticated user to inject an arbitrary script via a crafted configuration. Affected products and versions are as follows: ACERA 1210 firmware ver.02.36 and earlier, ACERA 1150i firmware ver.01.35 and earlier, ACERA 1150w firmware ver.01.35 and earlier, ACERA 1110 firmware ver.01.76 and earlier, ACERA 1020 firmware ver.01.86 and earlier, ACERA 1010 firmware ver.01.86 and earlier, ACERA 950 firmware ver.01.60 and earlier, ACERA 850F firmware ver.01.60 and earlier, ACERA 900 firmware ver.02.54 and earlier, ACERA 850M firmware ver.02.06 and earlier, ACERA 810 firmware ver.03.74 and earlier, and ACERA 800ST firmware ver.07.35 and earlier. They are affected when running in ST(Standalone) mode.

Why

Attacker-controlled content can reach a browser as executable script without sufficient output encoding or sanitisation.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
a network path → Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
Required interaction required
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-79 ↗

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UIRequiredUser interaction: Another user must perform an action for exploitation to succeed.SChangedScope: The attack can affect a component governed by a different security authority.CLowConfidentiality impact: A successful attack can cause a limited loss.ILowIntegrity impact: A successful attack can cause a limited loss.ANoneAvailability impact: No direct loss is represented by this metric.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
NetworkCWE-79
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

Cyber Security Agency of Singapore · English · CSA-SB-20231004Security Bulletin 04 Oct 2023

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 04 Oct 2023, published on 4 October 2023. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
JVN iPedia · Japanese · JVNDB-2023-003767フルノシステムズ製無線 LAN アクセスポイント（ST モード利用時）における複数の脆弱性

株式会社フルノシステムズが提供する無線 LAN アクセスポイント製品（ST モード利用時）には、次の複数の脆弱性が存在します。 　* OSコマンドインジェクション (CWE-78) - CVE-2023-39222 　* クロスサイトスクリプティング (CWE-79) - CVE-2023-39429 　* クロスサイトリクエストフォージェリ (CWE-352) - CVE-2023-41086 　* 認証回避 (CWE-288) - CVE-2023-42771 　* パストラバーサル (CWE-22) - CVE-2023-43627 本件は、最初に下記の方が OS コマンドインジェクションの脆弱性（CVE-2023-39222）を JPCERT/CCに 報告しました。 報告者: 株式会社ゼロゼロワン 佐藤勝彦（ｇｏｒｏｈ＿ｋｕｎ） 氏 この報告を受けて開発者が調査を行った結果、新たに他の脆弱性が判明し、対応が行われました。 これらの脆弱性情報を製品利用者へ周知するため、開発者と JPCERT/CC の間で調整を行い、JVN 公表に至りました。

Official advisory ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Fix not verified
Affected
  • ACERA 1210: firmware ver.02.36 and earlier
  • ACERA 1150i: firmware ver.01.35 and earlier
  • ACERA 1150w: firmware ver.01.35 and earlier
  • ACERA 1110: firmware ver.01.76 and earlier
  • ACERA 1020: firmware ver.01.86 and earlier
  • ACERA 1010: firmware ver.01.86 and earlier
  • ACERA 950: firmware ver.01.60 and earlier
  • ACERA 850F: firmware ver.01.60 and earlier
  • ACERA 900: firmware ver.02.54 and earlier
  • ACERA 850M: firmware ver.02.06 and earlier
  • ACERA 810: firmware ver.03.74 and earlier
  • ACERA 800ST: firmware ver.07.35 and earlier
Fixed
No fixed version is explicitly recorded in the structured CVE data.
Action
No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 3 Oct 2023 · Last source change 20 Sept 2024, 18:32 UTC · CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVE recordCVE.org · 5.1
CVSS sourceNIST NVD
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-14
European sourceENISA EUVD · EUVD-2023-43153
Product sourceCNA
Remediation sourceCVE/CNA references
CWE sourceNIST NVD
NVD statusNVD modified after enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
ENISA EUVD · EUVD-2023-43153↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2023-39429 · cve.blacktree.nl