Critical severity · published Oct 27, 2026
CVE-2026-82122
Stack-based Buffer Overflow Vulnerability in HiRDB
New
9.4
CVSS
0.5%
EPSS
No
On KEV
Description
Stack-based Buffer Overflow Vulnerability in HiRDB.
This issue affects HiRDB Server Version 10: from 10-00 before 10-12-01; HiRDB Server Version 9: from 09-00 through 09-66-22; HiRDB Server with Additional Function Version 9: from 09-00 through 09-66/V; HiRDB Server Version 9(32): from 09-02 through 09-66-22; HiRDB Server with Additional Function Version 9(32): from 09-00 through 09-66-/V.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HS
HiRDB Server Version 10 · Hitachi
10-00 before 10-12-01 · source: vendor
HS
HiRDB Server Version 9 · Hitachi
09-00 through 09-66-22 · source: vendor
HS
HiRDB Server Version 9(32) · Hitachi
09-02 through 09-66-22 · source: vendor
HS
HiRDB Server with Additional Function Version 9 · Hitachi
09-00 through 09-66/V · source: vendor
HS
HiRDB Server with Additional Function Version 9(32) · Hitachi
09-00 through 09-66-/V · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-82122
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-82122
www.hitachi.com
https://www.hitachi.com/products/it/software/security/info/vuls/hitachi-sec-2026-144/index.html
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