Oracle Java Runtime Environment (JRE)

CVE-2010-0840: Oracle JRE Unspecified Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 25 May 2022, 4,437 days after the CVE record was published.

How likely is exploitation in the next 30 days?

96.3%

EPSS score, percentile 99.9 of all scored records

How severe?

9.8 Critical

CVSS v3.1 base score, from CISA's enrichment of the record

What should I do?

CISA deadline 15 Jun 2022. Apply updates per vendor instructions.

Advisories and patches (12)

Which versions are affected?

Not stated. The CVE record gives vendor and product as “n/a” and the version as “unspecified”.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

What to do

Required action, set by CISA

Apply updates per vendor instructions.

CISA due date for this action: 15 June 2022.

Advisories and patches

APPLE-SA-2010-05-18-1 (Vendor advisory)
HPSBMU02799 (Vendor advisory)
RHSA-2010:0383 (Vendor advisory)
RHSA-2010:0338 (Vendor advisory)
APPLE-SA-2010-05-18-2 (Vendor advisory)
SUSE-SR:2010:011 (Vendor advisory)
SSRT100179 (Vendor advisory)
SSRT100089 (Vendor advisory)
RHSA-2010:0339 (Vendor advisory)
SUSE-SR:2010:008 (Vendor advisory)
RHSA-2010:0471 (Vendor advisory)
SUSE-SR:2010:017 (Vendor advisory)

Linked from CISA's catalog entry

https://nvd.nist.gov/vuln/detail/CVE-2010-0840

Affected products and versions

The CVE record does not name affected products or versions: vendor and product are “n/a” and the version is “unspecified”.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

About this vulnerability

Unspecified vulnerability in the Java Runtime Environment (JRE) in Java SE component allows remote attackers to affect confidentiality, integrity, and availability via Unknown vectors.

Summary: CISA's KEV catalog, as of 28 Oct 2026.

CISA added CVE-2010-0840 to its Known Exploited Vulnerabilities (KEV) catalog on 25 May 2022.
CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
The due date CISA sets for the required action is 15 Jun 2022.
The CVE record was published on 1 Apr 2010, 4,437 days before it was added to KEV.
The CVE record carries a CVSS v3.1 base score of 9.8 (Critical), taken from CISA's enrichment of the record.
FIRST's EPSS model puts the probability of exploitation in the next 30 days at 96.3% (percentile 99.9), as of 28 Oct 2026.
CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact total.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.

Description

Unspecified vulnerability in the Java Runtime Environment component in Oracle Java SE and Java for Business 6 Update 18, 5.0 Update 23, and 1.4.2_25 allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors. NOTE: the previous information was obtained from the March 2010 CPU. Oracle has not commented on claims from a reliable researcher that this is related to improper checks when executing privileged methods in the Java Runtime Environment (JRE), which allows attackers to execute arbitrary code via (1) an untrusted object that extends the trusted class but has not modified a certain method, or (2) "a similar trust issue with interfaces," aka "Trusted Methods Chaining Remote Code Execution Vulnerability."

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

Timeline

Date	Event
1 Apr 2010	CVE record published
25 May 2022	Added to CISA KEV
15 Jun 2022	CISA due date for the required action
22 Oct 2025	CVE record last updated

References

28 more in the CVE record.

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