Out-of-Bounds Write Vulnerability in BC-LTS by Legion of the Bouncy Castle Inc.
CVE-2026-15997

1.7LOW

Key Information:

Vendor

Legion Of The Bouncy Castle Inc.

Status
Bc-lts
Vendor
CVE Published:
16 July 2026

What is CVE-2026-15997?

An out-of-bounds write vulnerability exists in the BC-LTS library from Legion of the Bouncy Castle Inc. This issue arises when the library processes SHA3/SHAKE states from potentially untrusted sources, leading to buffer overflow concerns on ARM architectures. Affected versions include BC-LTS from 2.73.0 before 2.73.12.1. The flaw can compromise application integrity if not properly mitigated.

Affected Version(s)

BC-LTS ARM 2.73.0 < 2.73.12.1

References

https://github.com/bcgit/bc-lts-java/wiki/CVE-2026-15997

CVSS V4

Score:
1.7
Severity:
LOW
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.