CVE-2016-4863

The Toshiba FlashAir SD-WD/WC series Class 6 model with firmware version 1.00.04 and later, FlashAir SD-WD/WC series Class 10 model W-02 with firmware version 2.00.02 and later, FlashAir SD-WE series Class 10 model W-03, FlashAir Class 6 model with firmware version 1.00.04 and later, FlashAir II Class 10 model W-02 series with firmware version 2.00.02 and later, FlashAir III Class 10 model W-03 series, FlashAir Class 6 model with firmware version 1.00.04 and later, FlashAir W-02 series Class 10 model with firmware version 2.00.02 and later, FlashAir W-03 series Class 10 model does not require authentication on accepting a connection from STA side LAN when "Internet pass-thru Mode" is enabled, which allows attackers with access to STA side LAN can obtain files or data.

Published: 2017-05-22 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2016-4863 is rated Low Risk (26.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.12%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-4863

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-20 0.16% 0.12% -0.04%
2 2025-03-19 0.09% 0.16% +0.07%
3 2023-03-07 0.09%

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-4863

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.0 MEDIUM
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
2.8 1.4 [email protected]
3.3 2.0 LOW
AV:A/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
6.5 2.9 [email protected]

Weakness enumeration for CVE-2016-4863

Affected software / configurations for CVE-2016-4863

Vendor Product Version Raw CPE
toshiba flashair <= 1.00.03 cpe:2.3:a:toshiba:flashair:*:*:*:*:*:*:*:*
toshiba flashair <= 1.00.04 cpe:2.3:a:toshiba:flashair:*:*:*:*:*:*:*:*
toshiba flashair <= 1.00.06 cpe:2.3:a:toshiba:flashair:*:*:*:*:*:*:*:*
toshiba flashair <= 1.02 cpe:2.3:a:toshiba:flashair:*:*:*:*:*:*:*:*
toshiba flashair <= 2.00.03 cpe:2.3:a:toshiba:flashair:*:*:*:*:*:*:*:*
toshiba flashair <= 3.00.01 cpe:2.3:a:toshiba:flashair:*:*:*:*:*:*:*:*
toshiba flashair <= 3.0.2 cpe:2.3:a:toshiba:flashair:*:*:*:*:*:*:*:*

References for CVE-2016-4863

URL Tags
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000168 Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/93479 Third Party Advisory VDB Entry
https://jvn.jp/en/jp/JVN39619137/index.html Third Party Advisory VDB Entry
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