Medium severity · published Aug 26, 2026
CVE-2026-76149
CorvusSKK contains an integer overflow vulnerability, which may allow malicious data to be written to a dictionary file
4.4
CVSS
0.2%
EPSS
No
On KEV
Description
CorvusSKK contains an integer overflow vulnerability, which may allow malicious data to be written to a dictionary file.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
CorvusSKK · SASAKI Nobuyuki
before 3.3.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76149
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-76149
github.com
https://github.com/nathancorvussolis/corvusskk/releases/tag/3.3.4
jvn.jp
https://jvn.jp/en/jp/JVN18496672/
More from CorvusSKK
7.8
CVE-2026-76148
CorvusSKK contains a code injection vulnerability, which may lead to arbitrary code execution on the affected product