Is CVE-2010-1871 in the CISA KEV catalog?

Yes. CVE-2010-1871 is on the CISA Known Exploited Vulnerabilities list, added 2021-12-10.

What is the CVSS severity of CVE-2010-1871?

CVE-2010-1871 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2010-1871?

CVE-2010-1871 has an EPSS score of 83.40% (100th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2010-1871?

No published fix for CVE-2010-1871 has been found yet. It is on the CISA Known Exploited Vulnerabilities list; federal agencies must remediate by 2022-06-10. Apply the vendor's mitigations per CISA's guidance.

CVE & CISA-KEV Catalog

CVE-2010-1871

HIGHCISA KEVEPSS 100th pctl

8.8

CVSS v3

NVD

Description

JBoss Seam 2 (jboss-seam2), as used in JBoss Enterprise Application Platform 4.3.0 for Red Hat Linux, does not properly sanitize inputs for JBoss Expression Language (EL) expressions, which allows remote attackers to execute arbitrary code via a crafted URL. NOTE: this is only a vulnerability when the Java Security Manager is not properly configured.

CWE-917

How to fix

Actively exploited, no published fix found yet

CISA required action: Apply updates per vendor instructions.

Federal remediation due: 2022-06-10

Mitigation guidance may be in the linked vendor advisories in the References section below.

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CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

83.40%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Red Hat Linux JBoss Seam 2 Remote Code Execution Vulnerability

JBoss Seam 2 (jboss-seam2), as used in JBoss Enterprise Application Platform 4.3.0 for Red Hat Linux, allows attackers to perform remote code execution. This vulnerability can only be exploited when the Java Security Manager is not properly configured.

Apply updates per vendor instructions.

Remediation due: 2022-06-10

References

Vendor Advisory1

vupen.com

Third-Party Advisory4

Government Resource1

cisa.gov

Issue Tracking1

bugzilla.redhat.com

Other references2

Related Vulnerabilities

Other CWE-917 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-26134	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-44228	Critical	10.0	100%	KEV + Ransom	Fix
CVE-2021-26084	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2021-45046	Critical	9.0	100%	KEV + Ransom	Fix
CVE-2022-22963	Critical	9.8	100%	KEV	-
CVE-2020-10199	High	8.8	99%	KEV	Fix

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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 2026-04-22.