Vulnerability DatabaseCVE-2026-15997
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CVE-2026-15997
Published:July 16, 2026
Updated:August 06, 2026
Out-of-bounds write vulnerability in Legion of the Bouncy Castle Inc. BC-LTS bcprov-lts8on on ARM allows Overflow Buffers. This vulnerability is associated with program files https://github.Com/bcgit/bc-lts-java/blob/main/native_c/arm/sha/shake.C, https://github.Com/bcgit/bc-lts-java/blob/main/native_c/arm/sha/sha3.C. This issue affects BC-LTS: from 2.73.0 before 2.73.12.1. Issue is only applicable if application involved is accepting memoable SHA3 / SHAKE states from potentially untrusted sources.
Affected Packages
org.bouncycastle:bcprov-lts8on (JAVA):
Affected version(s) >=2.73.0 <2.73.12.1
Fix Suggestion:
Update to version 2.73.12.1
Related Resources (5)
https://nvd.nist.gov/vuln/detail/CVE-2026-15997
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/15xxx/CVE-2026-15997.json
https://github.com/bcgit/bc-lts-java
https://www.bouncycastle.org/download/bouncy-castle-java-lts/
https://github.com/bcgit/bc-lts-java/wiki/CVE-2026-15997
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CVSS v4
Base Score:
1.6
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
ACTIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
UNREPORTED
CVSS v3
Base Score:
4.7
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Out-of-bounds Write
CWE-787
EPSS
Base Score:
0.10