CVE-2025-8885Network attack vector

Service interruption via uncapped ASN.1 OID conversion

Published Aug 12, 2025 · Updated Sep 12, 2025

Resource exhaustion in Bouncy Castle Java and Java FIPS affected releases allows remote attackers to interrupt services via crafted OIDs. ASN1ObjectIdentifier accepts unbounded encoded OID contents and can consume excessive memory while converting parsed values to decimal strings. Exposure requires an application to consume unvetted or otherwise unvalidated ASN.1 encodings from an external source; confidentiality and integrity are unaffected.

CVSS severity6.3
Medium
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource exhaustion in Bouncy Castle Java and Java FIPS affected releases allows remote attackers to interrupt services via crafted OIDs. ASN1ObjectIdentifier accepts unbounded encoded OID contents and can consume excessive memory while converting parsed values to decimal strings. Exposure requires an application to consume unvetted or otherwise unvalidated ASN.1 encodings from an external source; confidentiality and integrity are unaffected.

The record

CVE
CVE-2025-8885
Published
Aug 12, 2025
Updated
Sep 12, 2025
Vendor
Legion of the Bouncy Castle Inc.
Product
Bouncy Castle Java
Classifications
CWE-770, CAPEC-130, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 12, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 12, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0 <=1.77

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Legion of the Bouncy Castle Inc. · Bouncy Castle Javaversion=1.0 <=1.77
Legion of the Bouncy Castle Inc. · Bouncy Castle Java FIPSversion=1.0.0 <=1.0.2.5; version=2.0.0 <=2.0.1

Published CVSS scores

6.3Legion of the Bouncy Castle Inc.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/S:P/R:U/RE:M/U:Amber

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-770Allocation of Resources Without Limits or Throttling
CAPEC-130Excessive Allocation
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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