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CVE-2017-10870

20
FAUCET Score

CVE-2017-10870 is a memory corruption vulnerability affecting various versions of JustSystems' Rakuraku Hagaki and Rakuraku Hagaki Select for Ichitaro products. This flaw allows an attacker to execute arbitrary code with the privileges of the application by tricking a user into opening a specially crafted file. Rated with a CVSS score of 7.8 (High), it requires user interaction (UI:R) and local access (AV:L) but can lead to high confidentiality, integrity, and availability impacts (C:H/I:H/A:H). Despite its high severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:justsystems:easy_postcard_2016:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:justsystems:easy_postcard_2017:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:justsystems:easy_postcard_2018:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:justsystems:ichitaro_2016:-:*:*:*:*:*:*:*
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:a:justsystems:ichitaro_2017:-:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.31%
Probability of exploitation in next 30 days
EPSS Percentile
67.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0131 is in the 65th percentile among its peer group of 11,621 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jvn.jp / en/vu/JVNVU93703434/index.html
Third Party AdvisoryVDB Entry
justsystems.com / jp/info/js17003.html
PatchVendor Advisory