CVE-2017-10870

Memory corruption vulnerability in Rakuraku Hagaki (Rakuraku Hagaki 2018, Rakuraku Hagaki 2017, Rakuraku Hagaki 2016) and Rakuraku Hagaki Select for Ichitaro (Ichitaro 2017, Ichitaro 2016, Ichitaro 2015, Ichitaro Pro3, Ichitaro Pro2, Ichitaro Pro, Ichitaro 2011, Ichitaro Government 8, Ichitaro Government 7, Ichitaro Government 6 and Ichitaro 2017 Trial version) allows attackers to execute arbitrary code with privileges of the application via specially crafted file.

Published: 2017-11-02 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-10870 is rated Moderate Risk (49.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.32%). Review affected assets and schedule remediation.

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-2017-10870

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 2025-03-30 0.46% 0.32% -0.14%
2 2025-03-29 0.32% 0.46% +0.14%
3 2025-03-17 — 0.32% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-10870

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.0 HIGH
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2017-10870

Affected software / configurations for CVE-2017-10870

Vendor Product Version Raw CPE
justsystems easy_postcard_2016 — cpe:2.3:a:justsystems:easy_postcard_2016:-:*:*:*:*:*:*:*
justsystems easy_postcard_2017 — cpe:2.3:a:justsystems:easy_postcard_2017:-:*:*:*:*:*:*:*
justsystems easy_postcard_2018 — cpe:2.3:a:justsystems:easy_postcard_2018:-:*:*:*:*:*:*:*
justsystems ichitaro_2016 — cpe:2.3:a:justsystems:ichitaro_2016:-:*:*:*:*:*:*:*
justsystems ichitaro_2017 — cpe:2.3:a:justsystems:ichitaro_2017:-:*:*:*:*:*:*:*
justsystems ichitaro_2017_trial_version — cpe:2.3:a:justsystems:ichitaro_2017_trial_version:-:*:*:*:*:*:*:*
justsystems ichitaro_2018 — cpe:2.3:a:justsystems:ichitaro_2018:-:*:*:*:*:*:*:*
justsystems ichitaro_government_6 — cpe:2.3:a:justsystems:ichitaro_government_6:-:*:*:*:*:*:*:*
justsystems ichitaro_government_7 — cpe:2.3:a:justsystems:ichitaro_government_7:-:*:*:*:*:*:*:*
justsystems ichitaro_government_8 — cpe:2.3:a:justsystems:ichitaro_government_8:-:*:*:*:*:*:*:*
justsystems ichitaro_pro — cpe:2.3:a:justsystems:ichitaro_pro:-:*:*:*:*:*:*:*
justsystems ichitaro_pro_2 — cpe:2.3:a:justsystems:ichitaro_pro_2:-:*:*:*:*:*:*:*
justsystems ichitaro_pro_2011 — cpe:2.3:a:justsystems:ichitaro_pro_2011:-:*:*:*:*:*:*:*
justsystems ichitaro_pro_3 — cpe:2.3:a:justsystems:ichitaro_pro_3:-:*:*:*:*:*:*:*

References for CVE-2017-10870

URL Tags
https://jvn.jp/en/vu/JVNVU93703434/index.html Third Party Advisory VDB Entry
https://www.justsystems.com/jp/info/js17003.html Patch Vendor Advisory
cvelogic Threat Intelligence