How severe is CVE-2016-4838?

CVE-2016-4838 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2016-4838 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4838?

CVE-2016-4838 primarily affects Moneyforward Money Forward For Apppass. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-4838?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2016-4838 published?

CVE-2016-4838 was published on 2017-05-12 and last updated on 2026-06-17.

CVE-2016-4838

CVE-2016-4838 is a high-severity vulnerability in Moneyforward Money Forward For Apppass with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Moneyforward Money Forward For Apppass
Published: 2017-05-12
Last modified: 2026-06-17

Description

The Android Apps Money Forward (prior to v7.18.0), Money Forward for The Gunma Bank (prior to v1.2.0), Money Forward for SHIGA BANK (prior to v1.2.0), Money Forward for SHIZUOKA BANK (prior to v1.4.0), Money Forward for SBI Sumishin Net Bank (prior to v1.6.0), Money Forward for Tokai Tokyo Securities (prior to v1.4.0), Money Forward for THE TOHO BANK (prior to v1.3.0), Money Forward for YMFG (prior to v1.5.0) provided by Money Forward, Inc. and Money Forward for AppPass (prior to v7.18.3), Money Forward for au SMARTPASS (prior to v7.18.0), Money Forward for Chou Houdai (prior to v7.18.3) provided by SOURCENEXT CORPORATION allows an attacker to execute unintended operations via a specially crafted application.

Frequently asked questions

What is CVE-2016-4838?: The Android Apps Money Forward (prior to v7.18.0), Money Forward for The Gunma Bank (prior to v1.2.0), Money Forward for SHIGA BANK (prior to v1.2.0), Money Forward for SHIZUOKA BANK (prior to v1.4.0), Money Forward for SBI Sumishin Net Bank (prior to v1.6.0), Money Forward for Tokai Tokyo Securities (prior to v1.4.0), Money Forward for THE TOHO BANK (prior to v1.3.0), Money Forward for YMFG (prior to v1.5.0) provided by Money Forward, Inc. and Money Forward for AppPass (prior to v7.18.3), Money Forward for au SMARTPASS (prior to v7.18.0), Money Forward for Chou Houdai (prior to v7.18.3) provided by SOURCENEXT CORPORATION allows an attacker to execute unintended operations via a specially crafted application.
How severe is CVE-2016-4838?: CVE-2016-4838 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2016-4838 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4838?: CVE-2016-4838 primarily affects Moneyforward Money Forward For Apppass. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-4838?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-4838 published?: CVE-2016-4838 was published on 2017-05-12 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:a:moneyforward:money_forward_for_apppass:*:*:*:*:*:android:*:*
cpe:2.3:a:moneyforward:money_forward_for_au_smartpass:*:*:*:*:*:android:*:*
cpe:2.3:a:moneyforward:money_forward_for_chou_houdai:*:*:*:*:*:android:*:*
cpe:2.3:a:moneyforward:money_forward_for_sbi_sumishin_net_bank:*:*:*:*:*:android:*:*
cpe:2.3:a:moneyforward:money_forward_for_shiga_bank:*:*:*:*:*:android:*:*
cpe:2.3:a:moneyforward:money_forward_for_shizuoka_bank:*:*:*:*:*:android:*:*
cpe:2.3:a:moneyforward:money_forward_for_the_gunma_bank:*:*:*:*:*:android:*:*
cpe:2.3:a:moneyforward:money_forward_for_the_toho_bank:*:*:*:*:*:android:*:*
cpe:2.3:a:moneyforward:money_forward_for_tokai_tokyo_securities:*:*:*:*:*:android:*:*
cpe:2.3:a:moneyforward:money_forward_for_ymfg:*:*:*:*:*:android:*:*

More vulnerabilities in Moneyforward Money Forward For Apppass

CVE-2016-4839 — Medium (CVSS 5.5): The Android Apps Money Forward (prior to v7.18.0), Money Forward for The Gunma Bank (prior to v1.2.0), Money Forward…

All CVEs affecting Moneyforward Money Forward For Apppass →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →