CASCACascade Atlas

Evidence dossier

CVE-2010-1871

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)…

Exploited in the wild (CISA KEV since Dec 10, 2021). NVD reports CVSS 3.1 8.8. EPSS estimates 83.4% exploit likelihood as of Aug 27, 2026.

85.6–86.4Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

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.

State
PUBLISHED
Published
Aug 4, 2010
Updated
Oct 22, 2025
Evidence coverage
97%

Evidence chronology

What was known when

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  1. Source dateSource date omittedFirst observed by CASCA
    CISA-ADP

    Record text: CISA ADP Vulnrichment

    Inspect raw assertion
    Field
    container
    Value
    CISA ADP Vulnrichment
    Original evidence ↗
  2. Source dateSource date omittedFirst observed by CASCA
    CVE Program

    Record text: CVE Program Container

    Inspect raw assertion
    Field
    container
    Value
    CVE Program Container
    Original evidence ↗
  3. Source dateSource date omittedFirst observed by CASCA
    mitre

    Record text: 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.

    Inspect raw assertion
    Field
    container
    Value
    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.
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: Red Hat Linux JBoss Seam 2 Remote Code Execution Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Red Hat Linux JBoss Seam 2 Remote Code Execution Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 83.4% probability · 99.66th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.833970000000; percentile 0.996580000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Dec 10, 2021 · first observed Jul 19, 2026

Exploit likelihood83.40%

FIRST EPSS · score date Aug 27, 2026 · 99.7th percentile · first observed Aug 27, 2026

SeverityCVSS 8.8

NVD · CVSS 3.1 · first observed Jul 19, 2026 · same-version scores align in this snapshot

Evidence detail

Source limits and decisions

Why each evidence state has this value

casca-unknown-reasons-v1
Exploitation statusEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Severity assessmentEvidence supported

Eligible evidence is present for this bounded claim.

Revision
casca-direct-cvss-eligibility-v1
Cutoff
Aug 27, 2026
Resolution
None
Affected productsSource-reported scope

The cited source assertion is retained while canonical product linkage remains open.

Revision
casca-factor-d-obligations-v1
Cutoff
Aug 27, 2026
Resolution
Resolve identity

Source comparison

Who said what

CISA-ADPIndependent enrichment
Record text

CISA ADP Vulnrichment

Inspect raw assertion
Field
container
Value
CISA ADP Vulnrichment
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CVE ProgramDerivative copy
Record text

CVE Program Container

Inspect raw assertion
Field
container
Value
CVE Program Container
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
mitreOriginal assertion
Record text

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.

Inspect raw assertion
Field
container
Value
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.
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

Red Hat Linux JBoss Seam 2 Remote Code Execution Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Red Hat Linux JBoss Seam 2 Remote Code Execution Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

83.4% probability · 99.66th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.833970000000; percentile 0.996580000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
6Underlying assertions
5Canonical products
4Target assertions
2Constraint assertions

Grouped from 3 configuration nodes in this exact snapshot. Visual grouping is navigational; asset exposure and root cause require cited evidence.

Identity source boundaries
  • Cpe dictionary1,775,266 records · observed through 2026-07-21T06:45:29.809Z27d65b0f-b718-4b4f-bb79-c47c68d09dfa
  • Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z955dae73-7302-438b-aee1-058d7cc5d48e

6 scope groups

mitre · source assertedn/an/aDirect source scope
Affected: n/a
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "n/a"}]
NVD CPE · APPLICATIONnetapponcommand_balanceVulnerable target · 1 assertions
Version not applicableCanonical identity product-1e7e71c5224a6f4135c855890a7cd875f6ac32bf0024c6ee2e888da0212d267eLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:netapp:oncommand_balance:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    7dcbcc5d-c396-47a8-adf4-d3a2c4377fb1
NVD CPE · APPLICATIONnetapponcommand_insightVulnerable target · 1 assertions
Version not applicableCanonical identity product-6bac5e5dc0babe5d628e246786e711716ddfb068132218ad0dd5123beb466ec4Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:netapp:oncommand_insight:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    f1be6c1f-2565-4e97-92aa-16563e5660a5
NVD CPE · APPLICATIONnetapponcommand_unified_managerVulnerable target · 1 assertions
Version not applicableCanonical identity product-c8fd04cb7cbf514fd1a8bf9dafd5cd44499d96cff80cffaf10ccd171e11e4a5fLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:netapp:oncommand_unified_manager:-:*:*:*:*:clustered_data_ontap:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    95b173e0-1475-4f8d-a982-86f36be3dd4a
NVD CPE · OPERATING SYSTEMredhatenterprise_linuxEnvironmental constraint · 2 assertions
Version 4; Version 5Canonical identity product-ec20120153af988d42a6a2dfd3cdd9595762b35581f66014faaa4f85d8f844eeLinked exact
Scope constrained
Inspect raw assertions
  1. cpe:2.3:o:redhat:enterprise_linux:4:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    ca2c244c-82f6-49bc-b7f7-54ab989c43e8
  2. cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    aa9b3cc0-df1c-4a86-b2a3-a9d428a5a6e6
NVD CPE · APPLICATIONredhatjboss_enterprise_application_platformVulnerable target · 1 assertions
Version 4.3.0Canonical identity product-0ec93b384f923447c109f9a0331b22e72852d91f1740883ca2c7fe228c708d1cLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:redhat:jboss_enterprise_application_platform:4.3.0:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    e82b2ad8-967d-4abe-982b-87b9de73f8d6

Affected-product evidence

Accepted scope and product mapping

4 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-c759fafc60d6abc1277ecbf1ee6294d1f25ae0a4c7d5d0d9355c414b2db182cc · product-0ec93b384f923447c109f9a0331b22e72852d91f1740883ca2c7fe228c708d1c

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
56c014e7-fc69-4157-8820-a027ac3e9b0c
Mapping establishedEvidence supported

vendor-d1dcf2e2192106a1eb34744930a80b83005fa5d60195c923256e69ac39974aed · product-1e7e71c5224a6f4135c855890a7cd875f6ac32bf0024c6ee2e888da0212d267e

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
7602c8b8-e0a2-44c2-8cd5-4fe1e74cec42
Mapping establishedEvidence supported

vendor-d1dcf2e2192106a1eb34744930a80b83005fa5d60195c923256e69ac39974aed · product-6bac5e5dc0babe5d628e246786e711716ddfb068132218ad0dd5123beb466ec4

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
885b07a1-3298-443c-8bc3-f4bb209560d4
Mapping establishedEvidence supported

vendor-d1dcf2e2192106a1eb34744930a80b83005fa5d60195c923256e69ac39974aed · product-c8fd04cb7cbf514fd1a8bf9dafd5cd44499d96cff80cffaf10ccd171e11e4a5f

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
928f8d7f-90f6-4f06-81e3-af6b33cd5214
Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class
Direct cve affected
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
2ea39272-7786-4591-98be-8a3d552a6a40

Assessments

CVSS by origin

8.8
NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:N/AC:M/Au:N/C:P/I:P/A:P
8.8
CVE Program sourceCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8
CISA-ADPCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Direct CVE/CNA normalized decisions

8.8Priority eligible

CISA-ADP

CVSS 3.1 · Secondary · Independent enrichment · rank 2

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Validation
Valid match
Recomputed
8.8
Decision reason
Evidence supported
Policy
casca-direct-cvss-eligibility-v1

Assessments are retained side by side under closed precedence. Cascade never averages CVSS.

Evidence boundaries

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; remaining scope stays source-scoped.
  • NVD-carried upstream facts remain derivative; independent corroboration requires a separately authored source.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.
  • OSV aggregation and OSV-converted NVD material are not independent corroboration.
  • Red Hat facts are vendor assertions for the exact supplied products.
  • Nonmembership and not-yet-observed states are not proof of safety.