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CVE-2026-15997: CWE-787 Out-of-bounds write in Legion of the Bouncy Castle Inc. BC-LTS

0
Low
VulnerabilityCVE-2026-15997cvecve-2026-15997cwe-787
Published: 07/16/2026 (07/16/2026, 22:17:16 UTC)
Source: CVE Database V5
Vendor/Project: Legion of the Bouncy Castle Inc.
Product: BC-LTS

Description

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.

CVSS v4.0

Score 1.7low

Attack Vector
Local
Attack Complexity
High
Attack Requirements
Present
Privileges Required
None
User Interaction
Active
Vuln. Confidentiality
High
Vuln. Integrity
None
Vuln. Availability
None
Subsq. Confidentiality
None
Subsq. Integrity
None
Subsq. Availability
None
Scope
P
CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/S:P/AU:N/R:A/V:D/RE:M/U:Amber

Affected software

GitHub Actionsmore threats →cve
bcprov-lts8on
pkg:github/bcprov-lts8on
Affected versions
>=2.73.0 <2.73.12.1

Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.

Technical Details

Data Version
5.2
Assigner Short Name
bcorg
Date Reserved
2026-07-16T21:47:28.715Z
Cvss Version
4.0
State
PUBLISHED
Remediation Level
null

Threat ID: 6a595c2d68715ace43d0b02d

Added to database: 07/16/2026, 22:33:17 UTC

Last updated: 07/16/2026, 22:33:17 UTC

Views: 1

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