7.5highHigh
CVE-2026-59646
Bouncycastle Bc-Java
In Bouncy Castle for Java before 1.85, DTLS handshake reassembler allocates buffer from unchecked 24-bit length. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bctls-fips 1.0.24 (1.0.X series), 2.0.24 (2.0.X series) and 2.1.24 (2.1.X series).
Exploitation status
- A vendor advisory or patch reference has been published.
What the metrics mean
- It is reachable over a network, without needing local access.
- For an attacker who can reach it, no special conditions are needed to exploit it.
- To exploit it, no account is needed.
- Beyond that, no action by a user is required.
Scoring
- CVSS
- 7.5 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- CVSS v4
- 8.7
- Weakness
- CWE-789
- Assigned by
- 91579145-5d7b-4cc5-b925-a0262ff19630
Dates
- Published
- 2026-08-03
- Last modified
- 2026-08-28
- Sources
- NVD
Affected products
- Bouncycastle Bc-Java- 1.85
- Bouncycastle Bctls-Fips- 1.0.24, 2.0.19 - 2.0.24, 2.1.20 - 2.1.24
- Bouncycastle Bouncy Castle For Java Lts- 2.73.11
As listed in the NVD configuration data. Not a statement about your estate.