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» CVE-2024-39817
Insertion of sensitive information into sent data issue exists in Cybozu Office 10.0.0 to 10.8.6, which may allow a user who can login to the product to view data that the user does not have access by conducting 'search' under certain conditions in Custom App.
NVD Status: Modified ,CVE State: published
Threat Intelligence & Risk Assessment for CVE-2024-39817
Conclusion & alert: CVE-2024-39817 is rated Low Risk (37.4/100) : CVSS Medium severity, with low exploitation likelihood (EPSS 0.42%). 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-2024-39817
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
2026-06-15
0.54%
0.42%
-0.13%
2
2025-12-26
0.40%
0.54%
+0.14%
3
2025-11-21
—
0.40%
—
Full EPSS history
(10 records total)
Common vulnerability scoring system (CVSS) metrics for CVE-2024-39817
CVSS metrics for this CVE.
Base score
Version
Severity
Vector
Exploitability
Impact
Score source
6.5
3.1
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:L)
A normal user session is enough; they don’t have to be admin.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
2.8
3.6
[email protected]
6.5
3.1
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:L)
A normal user session is enough; they don’t have to be admin.
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:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
2.8
3.6
134c704f-9b21-4f2e-91b3-4a467353bcc0
Weakness enumeration for CVE-2024-39817
Affected software / configurations for CVE-2024-39817
Vendor
Product
Version
Raw CPE
cybozu
office
>= 10.0.0, < 10.8.7
cpe:2.3:a:cybozu:office:*:*:*:*:*:*:*:*
References for CVE-2024-39817
cvelogic
Threat Intelligence