CVE-2015-2987

low
Published 2015-08-28 · Modified 2026-05-06
CVSS v3
CVSS v2
2.6
VIR risk
2.6

Description

Type74 ED before 4.0 misuses 128-bit ECB encryption for small files, which makes it easier for attackers to obtain plaintext data via differential cryptanalysis of a file with an original length smaller than 128 bits.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: vultures@jpcert.or.jp — http://type74org.blog14.fc2.com/blog-entry-1384.html

vendor Authored 2026-05-27

Vendor advisory: vultures@jpcert.or.jp — http://type74.org/edman5-1.php

vendor Authored 2026-05-27

Vendor advisory: vultures@jpcert.or.jp — http://jvndb.jvn.jp/jvndb/JVNDB-2015-000119

vendor Authored 2026-05-27

Vendor advisory: vultures@jpcert.or.jp — http://jvn.jp/en/jp/JVN91474878/index.html

Application impact

VendorProductVersionsFixed
type74ed{"endIncluding":"3.4"}

References

CWEs

CWE-17

Verify integrity in audit chain (admin only). AS-IS.