PT-2026-60591 · Legion Of The Bouncy Castle · Bc-Lts

CVE-2026-15997 · Published 2026-07-16 · Updated 2026-07-16

Mitre

CVSS v4.0

1.7

Low

Base vector

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

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.

Exploit

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-15997

Affected Products

Bc-Lts

References · 2

• 🔥 https://github.com/bcgit/bc-lts-java/wiki/CVE-2026-15997 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-15997 · Security Note