CVE-2026-59652

Q: How do I fix CVE-2026-59652?

Upgrade bc-java to 1.85 or later.

Q: Is CVE-2026-59652 being actively exploited?

Not that we know of. CVE-2026-59652 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.30% is the estimated probability that it will be exploited in the next 30 days. That is higher than 22% of all scored CVEs.

Q: How severe is CVE-2026-59652?

CVE-2026-59652 has a CVSS v3 base score of 6.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2026-59652 affect?

Published advisories record a fix for bc-java (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

MEDIUM

6.5

CVSS v3

NVD

Description

In Bouncy Castle for Java before 1.85, LDAP filter injection in legacy jdk1.4 LDAPStoreHelper.

CWE-90

How to fix

Remediation Available

bc-javaNVD

Affected:< 1.85Fixed in:1.85CVE-2026-59652derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploit Intelligence

0.30%probability of exploitation in 30 days

22ndpercentile

Low risk: more likely to be exploited than 22% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

github.com

Related Vulnerabilities

Other CWE-90 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2016-9299	Critical	9.8	97%	-	-
CVE-2017-14596	Critical	9.8	6.9%	-	-
CVE-2016-8750	Medium	6.5	5.2%	-	Fix
CVE-2021-43350	Critical	9.8	4.8%	-	Fix
CVE-2017-4927	High	7.5	2.3%	-	Fix
CVE-2024-27310	Medium	5.3	2.3%	-	Fix

Common questions

How do I fix CVE-2026-59652?

Upgrade bc-java to 1.85 or later.

Is CVE-2026-59652 being actively exploited?

Not that we know of. CVE-2026-59652 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.30% is the estimated probability that it will be exploited in the next 30 days. That is higher than 22% of all scored CVEs.

How severe is CVE-2026-59652?

CVE-2026-59652 has a CVSS v3 base score of 6.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-59652 affect?

Published advisories record a fix for bc-java (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-09-02.