CVE-2010-0840

Exp

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."

Published: 2010-04-01 Last update: 2026-04-21 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-0840 is rated Critical Active Threat (99.1/100): CVSS Critical severity, with high exploitation likelihood (EPSS 92.12%, 100th percentile). CISA KEV confirms active exploitation (added 2022-05-25) affecting Oracle / Java Runtime Environment (JRE). Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2010-0840

Name: Oracle JRE Unspecified Vulnerability · CISA KEV detail

Exploit added: 2022-05-25

Action due: 2022-06-15

Required action: Apply updates per vendor instructions.

Public exploit references (Exploit-DB) for CVE-2010-0840

EDB-ID Source Kind Published Link
16297 exploit_db edb 2010-12-15 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2010-0840

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-23 92.16% 92.12% -0.03%
2 2026-02-18 92.11% 92.16% +0.05%
3 2026-01-26 — 92.11% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-0840

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 134c704f-9b21-4f2e-91b3-4a467353bcc0
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2010-0840

OS Trackers for CVE-2010-0840

vendor priority summary link
gentoo normal CVE-2010-0840: 1 GLSA(s) (201006-18), 3 atom(s) (app-emulation/emul-linux-x86-java, dev-java/sun-jdk, dev-java/sun-jre-bin); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2010-0840
redhat critical — https://access.redhat.com/security/cve/CVE-2010-0840
ubuntu medium CVE-2010-0840 medium priority: Ubuntu including 3 source packages (openjdk-6, sun-java5, sun-java6), 27 status rows across 9 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, upstream): released 9, DNE 6, not-affected 6, ignored 5, needs-triage 1. https://ubuntu.com/security/CVE-2010-0840

NVD evaluator notes for CVE-2010-0840

Comment: Per: http://www.oracle.com/technology/deploy/security/critical-patch-updates/javacpumar2010.html 'Affected product releases and versions: • Java SE: • JDK and JRE 6 Update 18 and earlier for Windows, Solaris, and Linux • JDK 5.0 Update 23 and earlier for Solaris • SDK 1.4.2_25 and earlier for Solaris • Java for Business: • JDK and JRE 6 Update 18 and earlier for Windows, Solaris and Linux • JDK and JRE 5.0 Update 23 and earlier for Windows, Solaris and Linux • SDK and JRE 1.4.2_25 and earlier for Windows, Solaris and Linux'

Affected software / configurations for CVE-2010-0840

Vendor Product Version Raw CPE
oracle jre 1.4.2_25 cpe:2.3:a:oracle:jre:1.4.2_25:*:*:*:*:*:*:*
oracle jre 1.5.0 cpe:2.3:a:oracle:jre:1.5.0:update23:*:*:*:*:*:*
oracle jre 1.6.0 cpe:2.3:a:oracle:jre:1.6.0:update18:*:*:*:*:*:*
opensuse opensuse 11.0 cpe:2.3:o:opensuse:opensuse:11.0:*:*:*:*:*:*:*
opensuse opensuse 11.1 cpe:2.3:o:opensuse:opensuse:11.1:*:*:*:*:*:*:*
opensuse opensuse 11.2 cpe:2.3:o:opensuse:opensuse:11.2:*:*:*:*:*:*:*
canonical ubuntu_linux 8.04 cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*
canonical ubuntu_linux 8.10 cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*
canonical ubuntu_linux 9.04 cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*
canonical ubuntu_linux 9.10 cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*

References for CVE-2010-0840

URL Tags
http://itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c02273751 Broken Link
http://lists.apple.com/archives/security-announce/2010//May/msg00001.html Mailing List Third Party Advisory
http://lists.apple.com/archives/security-announce/2010//May/msg00002.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-04/msg00001.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-05/msg00001.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html Mailing List Third Party Advisory
http://marc.info/?l=bugtraq&m=127557596201693&w=2 Mailing List
http://marc.info/?l=bugtraq&m=134254866602253&w=2 Mailing List
http://secunia.com/advisories/39292 Broken Link Vendor Advisory
http://secunia.com/advisories/39317 Broken Link Vendor Advisory
http://secunia.com/advisories/39659 Broken Link Vendor Advisory
http://secunia.com/advisories/39819 Broken Link Vendor Advisory
http://secunia.com/advisories/40211 Broken Link Vendor Advisory
http://secunia.com/advisories/40545 Broken Link Vendor Advisory
http://secunia.com/advisories/43308 Broken Link Vendor Advisory
http://support.apple.com/kb/HT4170 Release Notes Third Party Advisory
http://support.apple.com/kb/HT4171 Release Notes Third Party Advisory
http://ubuntu.com/usn/usn-923-1 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2010:084 Broken Link
http://www.oracle.com/technetwork/topics/security/cpuoct2010-175626.html Patch Third Party Advisory
http://www.oracle.com/technetwork/topics/security/javacpumar2010-083341.html Patch Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2010-0337.html Broken Link
http://www.redhat.com/support/errata/RHSA-2010-0338.html Broken Link
http://www.redhat.com/support/errata/RHSA-2010-0339.html Broken Link
http://www.redhat.com/support/errata/RHSA-2010-0383.html Broken Link
http://www.redhat.com/support/errata/RHSA-2010-0471.html Broken Link
http://www.redhat.com/support/errata/RHSA-2010-0489.html Broken Link
http://www.securityfocus.com/archive/1/510528/100/0/threaded Broken Link Third Party Advisory VDB Entry
http://www.securityfocus.com/archive/1/516397/100/0/threaded Broken Link Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/39065 Broken Link Third Party Advisory VDB Entry
http://www.vmware.com/security/advisories/VMSA-2011-0003.html Third Party Advisory
http://www.vmware.com/support/vsphere4/doc/vsp_vc41_u1_rel_notes.html Release Notes
http://www.vupen.com/english/advisories/2010/1107 Broken Link
http://www.vupen.com/english/advisories/2010/1191 Broken Link Vendor Advisory
http://www.vupen.com/english/advisories/2010/1454 Broken Link Vendor Advisory
http://www.vupen.com/english/advisories/2010/1523 Broken Link Vendor Advisory
http://www.vupen.com/english/advisories/2010/1793 Broken Link Vendor Advisory
http://www.zerodayinitiative.com/advisories/ZDI-10-056 Third Party Advisory VDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13971 Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9974 Broken Link
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2010-0840 US Government Resource
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