CVE-2025-8885
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAllocation of Resources Without Limits or Throttling vulnerability in Legion of the Bouncy Castle Inc. BC Java bcprov on All (API modules), Legion of the Bouncy Castle Inc. BC-FJA bc-fips on All allows Excessive Allocation. This vulnerability is associated with program files https://github.com/bcgit/bc-java/blob/main/core/src/main/java/org/bouncycastle/asn1/ASN1ObjectIdenti... https://github.com/bcgit/bc-java/blob/main/core/src/main/java/org/bouncycastle/asn1/ASN1ObjectIdentifier.Java . This issue affects BC Java: from 1.0 through 1.77; BC-FJA: from 1.0.0 through 1.0.2.5, from 2.0.0 through 2.0.1.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThe vulnerability exists in the ASN1ObjectIdentifier parsing code within Bouncy Castle's BC Java and BC-FJA cryptographic libraries. Without proper resource limits, parsing specially crafted ASN.1 object identifiers can lead to excessive memory allocation, potentially causing denial of service through resource exhaustion.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- Authentication
- X
- User interaction
- None
- Scope
- P
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:X/R:U/V:X/RE:M/U:Amber
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Bouncy Castle library usageSearch your project dependencies (Maven pom.xml, Gradle build.gradle, or JAR files in lib/ directory) for bcprov, bcpkix, or bc-fips librariesAffected if Any Bouncy Castle library is present in the runtime environment
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Determine BC Java versionLocate the bcprov-*.jar file or dependency declaration and note the version number (e.g., bcprov-jdk18on-1.76.jar)Affected if Version is below 1.77
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Determine BC-FJA versionLocate the bc-fips-*.jar or bcpkix-*.jar file or dependency and note the version numberAffected if Version is below 2.0.1
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Verify ASN.1 Object Identifier parsing is usedSearch codebase for imports of org.bouncycastle.asn1.* and usage of ASN1ObjectIdentifier, ASN1InputStream, or ASN1Primitive.getInstance() methodsAffected if Application code parses ASN.1 object identifiers from untrusted input
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Check if resource limits are enforced on ASN.1 parsingReview code that performs ASN.1 parsing and verify if resource constraints (e.g., size limits, timeout, streaming with limits) are configured on the parsing context or input streamAffected if No resource limits are implemented on ASN.1 parsing operations
You are affected if you run BC Java below 1.77 or BC-FJA below 2.0.1, parse ASN.1 object identifiers from external input, and lack resource limits on ASN.1 parsing.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpgrade Bouncy Castle libraries to versions beyond 1.77 (BC Java) and beyond 2.0.1 (BC-FJA). Additionally, implement input validation and resource limits on ASN.1 parsing operations as a defense-in-depth measure.
BC Java: 1.78 or later; BC-FJA: 1.0.2.6+ (1.x) or 2.0.2+ (2.x)
- 1. Identify all Java projects that depend on BC Java (bcprov) or BC-FJA (bc-fips) libraries
- 2. For each project, check the current dependency version using build tools (Maven: mvn dependency:tree, Gradle: gradle dependencies)
- 3. Update BC Java dependency to version 1.78 or later
- 4. Update BC-FJA dependency to version 1.0.2.6 or later for the 1.x line, or version 2.0.2 or later for the 2.x line
- 5. Rebuild and test applications to verify functionality is maintained
- 6. Deploy updated applications to production environments
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing12.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,616.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-8885 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-8885 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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