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NVD / CVE Program· CNA jpcert

CVE-2023-39429: Cross-site scripting vulnerability in FURUNO SYSTEMS wireless LAN access point devices allows an authenticated user to inject an arbitrary s

Noroxi assessment

Priority: Monitor (action score 21/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.35% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Low priority for now. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.4 · v3.1—No exploit No fix recorded
Published
Oct 2, 2023
Updated
Jun 17, 2026
EPSS
0.3% · 28th percentile

Report tools

JSON

Action score

21

Monitor

Low priority for now.

CVSS
21 / 40 · 5.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • No fixed version yet

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2023-39429

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
furunosystemsacera 1210 firmware
furunosystemsacera 1210
furunosystemsacera 1150i firmware
furunosystemsacera 1150i
furunosystemsacera 1150w firmware
furunosystemsacera 1150w
furunosystemsacera 1110 firmware
furunosystemsacera 1110
furunosystemsacera 1020 firmware
furunosystemsacera 1020
furunosystemsacera 1010 firmware
furunosystemsacera 1010

and 12 more

Limit the impact of XSS

This is a cross-site scripting (XSS) vulnerability. A well-configured Content-Security-Policy doesn't fix it, but greatly reduces its impact. Check your site's CSP and other security headers for free.

Check security headers

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • furunosystems acera 1010 firmwareup to 01.86 inclusive
  • furunosystems acera 1020 firmwareup to 01.86 inclusive
  • furunosystems acera 1110 firmwareup to 01.76 inclusive
  • furunosystems acera 1150i firmwareup to 01.35 inclusive
  • furunosystems acera 1150w firmwareup to 01.35 inclusive
  • furunosystems acera 1210 firmwareup to 02.36 inclusive
  • furunosystems acera 800st firmwareup to 07.35 inclusive
  • furunosystems acera 810 firmwareup to 03.74 inclusive
  • furunosystems acera 850f firmwareup to 01.60 inclusive
  • furunosystems acera 850m firmwareup to 02.06 inclusive
  • furunosystems acera 900 firmwareup to 02.54 inclusive
  • furunosystems acera 950 firmwareup to 01.60 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (jpcert). Independent of NVD's CPE analysis and usually ahead of it.

  • FURUNO SYSTEMS Co.,Ltd. ACERA 1010

    • firmware ver.01.86 and earlieraffected

  • FURUNO SYSTEMS Co.,Ltd. ACERA 1020

    • firmware ver.01.86 and earlieraffected

  • FURUNO SYSTEMS Co.,Ltd. ACERA 1110

    • firmware ver.01.76 and earlieraffected

  • FURUNO SYSTEMS Co.,Ltd. ACERA 1150i

    • firmware ver.01.35 and earlieraffected

  • FURUNO SYSTEMS Co.,Ltd. ACERA 1150w

    • firmware ver.01.35 and earlieraffected

  • FURUNO SYSTEMS Co.,Ltd. ACERA 1210

    • firmware ver.02.36 and earlieraffected

  • FURUNO SYSTEMS Co.,Ltd. ACERA 800ST

    • firmware ver.07.35 and earlieraffected

  • FURUNO SYSTEMS Co.,Ltd. ACERA 810

    • firmware ver.03.74 and earlieraffected

  • FURUNO SYSTEMS Co.,Ltd. ACERA 850F

    • firmware ver.01.60 and earlieraffected

  • FURUNO SYSTEMS Co.,Ltd. ACERA 850M

    • firmware ver.02.06 and earlieraffected

  • FURUNO SYSTEMS Co.,Ltd. ACERA 900

    • firmware ver.02.54 and earlieraffected

  • FURUNO SYSTEMS Co.,Ltd. ACERA 950

    • firmware ver.01.60 and earlieraffected

Same product

furunosystems: all records

Other highest-scoring records for the same primary product.

  • CVE-2023-41086Cross-site request forgery (CSRF) vulnerability exists in FURUNO SYSTEMS wireless LAN access point devices.
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

nvd-primary

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

The bug in code

The whole CWE-79 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.textContent = comment.body;

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Show all references (1 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records