CVE-2026-28704: Japan Computer Emergency Response Team Coordination Center (JPCERT/CC) Emocheck · Uncontrolled Search Path Element
Affects Japan Computer Emergency Response Team Coordination Center (JPCERT/CC) EmocheckSource CVE Database V5
Not known to be exploited · CVSS 7.8 High.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 10 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Japan Computer Emergency Response Team Coordination Center (JPCERT/CC)Emocheck | Affected
| Fixed in– |
GitHubjpcertcc/EmoCheckpkg:github/jpcertcc/EmoCheckOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until an official fix is released, users should avoid running Emocheck in directories where untrusted DLLs could be placed. Running Emocheck with least privilege and in controlled environments may reduce risk. Monitor official JPCERT/CC communications for updates and patches.
Description
Emocheck insecurely loads Dynamic Link Libraries (DLLs). If a crafted DLL file is placed to the same directory, an arbitrary code may be executed with the privilege of the user invoking EmoCheck.