[UPDATE] [hoch] Bouncy Castle BC-JAVA: Mehrere Schwachstellen

highCVE-2025-14813 CVE-2026-0636 CVE-2026-3505 CVE-2026-5588

Ein Angreifer kann mehrere Schwachstellen in Bouncy Castle BC-JAVA ausnutzen, um kryptografische Sicherheitsvorkehrungen zu umgehen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.

CSIRTS triage

vendor: Bouncy Castle product: BC-JAVA Authentication bypass Information disclosure Denial of service

What: An attacker can exploit multiple vulnerabilities in Bouncy Castle BC-JAVA to bypass cryptographic security measures, disclose confidential information, or cause a denial-of-service condition.
Who is affected: Deployments of Bouncy Castle BC-JAVA are affected.
Urgency: Remediation is high urgency due to the high severity and potential for exploitation.
Action: Update to the latest version of Bouncy Castle BC-JAVA.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch BC-JAVA

Get an email when a new BC-JAVA advisory drops — max one per day, one-click unsubscribe.

Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-09-11
Exploitation: Not in CISA KEV at last sync

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1129

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2025-148130.31% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-06360.53% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 43% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-35050.79% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 54% of all EPSS-scored CVEs.
Low exploitation riskCVE-2026-55880.64% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 49% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2025-14813	coverage & exploitation status	NVD · CVE.org
CVE-2026-0636	coverage & exploitation status	NVD · CVE.org
CVE-2026-3505	coverage & exploitation status	NVD · CVE.org
CVE-2026-5588	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

high[NEU] [hoch] IBM DB2: Mehrere Schwachstellencert-bund
unknownMultiples vulnérabilités dans les produits IBM (11 septembre 2026)cert-fr-avis
highexploited[UPDATE] [hoch] Atlassian Produkte (Bamboo, Bitbucket, Confluence, Crucible, Fisheye, und Jira): Mehrere Schwa…cert-bund
high[UPDATE] [hoch] Atlassian Bamboo, Bitbucket, Confluence, Fisheye, Crucible, Jira und Jira Service Management: …cert-bund
unknownMultiples vulnérabilités dans les produits IBM (04 septembre 2026)cert-fr-avis
high[UPDATE] [high] IBM License Metric Tool: Multiple Vulnerabilities enable unspecified attackcert-bund
unknownNCSC-2026-0325 [1.00] [M/H] Kwetsbaarheden verholpen in Atlassian productenncsc-nl
unknownexploitedMultiple vulnerabilities in IBM products (August 14, 2026)cert-fr-avis
unknownMultiple vulnerabilities in IBM products (August 07, 2026)cert-fr-avis
unknownMultiple vulnerabilities in IBM products (July 31, 2026)cert-fr-avis
high[NEW] [high] Oracle Communications: Multiple vulnerabilitiescert-bund
unknownMultiple vulnerabilities in Atlassian products (July 27, 2026)cert-fr-avis