High (7.5). EPSS 8.8% chance of exploitation in the next 30 days. Fixed in org.bouncycastle:bcprov-jdk14 1.64.
The ASN.1 parser in Bouncy Castle Crypto (aka BC Java) 1.63 can trigger a large attempted memory allocation, and resultant OutOfMemoryError error, via crafted ASN.1 data. This is fixed in 1.64.
Severity
CVSS 3.1
7.5 high
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
8.8% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-11-01)