CASCACascade Atlas

Evidence dossier

CVE-2024-4358

Registration Authentication Bypass Vulnerability

Exploited in the wild (CISA KEV since Jun 13, 2024). NVD reports CVSS 3.1 9.8. EPSS estimates 97.5% exploit likelihood as of Aug 6, 2026.

86.9–89.5Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

In Progress Telerik Report Server, version 2024 Q1 (10.0.24.305) or earlier, on IIS, an unauthenticated attacker can gain access to Telerik Report Server restricted functionality via an authentication bypass vulnerability.

State
PUBLISHED
Published
May 29, 2024
Updated
Oct 21, 2025
Evidence coverage
90%

Evidence chronology

What was known when

Download this view's receipt →
  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
    ProgressSoftware

    Record text: Registration Authentication Bypass Vulnerability

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

    Exploitation cataloged: Progress Telerik Report Server Authentication Bypass by Spoofing Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Progress Telerik Report Server Authentication Bypass by Spoofing Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 97.48% probability · 99.89th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.974820000000; percentile 0.998940000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Jun 13, 2024 · first observed Jul 19, 2026

Exploit likelihood97.48%

FIRST EPSS · score date Aug 6, 2026 · 99.9th percentile · first observed Aug 6, 2026

SeverityCVSS 9.8

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 ↗
ProgressSoftwareOriginal assertion
Record text

Registration Authentication Bypass Vulnerability

Inspect raw assertion
Field
container
Value
Registration Authentication Bypass Vulnerability
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

Progress Telerik Report Server Authentication Bypass by Spoofing Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Progress Telerik Report Server Authentication Bypass by Spoofing Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

97.48% probability · 99.89th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.974820000000; percentile 0.998940000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
1Underlying assertions
1Canonical products
1Target assertions
0Constraint assertions

Grouped from 1 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

3 scope groups

CISA-ADP · source assertedprogress_softwaretelerik_report_serverDirect source scope
Affected: 1.0.0.0 to before 10.1.24.514 (custom comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "affected", "version": "1.0.0.0", "lessThan": "10.1.24.514", "versionType": "custom"}]
ProgressSoftware · source assertedProgress Software CorporationTelerik Report ServerDirect source scope
Affected: 1.0.0 to before 10.1.24.514 (semver comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "affected", "version": "1.0.0", "lessThan": "10.1.24.514", "versionType": "semver"}]
NVD CPE · APPLICATIONtelerikreport_server_2024Vulnerable target · 1 assertions
Any version (unconstrained) (<= 10.0.24.305)Canonical identity product-d2e5bafb45ddc07ed6e5321897fc5100870a08cfe8b52fbd2dfb0a7ad150aa07Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:telerik:report_server_2024:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    through including 10.0.24.305
    Match ID
    4dae2de9-b18f-40f5-affb-2e85d34baa18

Affected-product evidence

Accepted scope and product mapping

1 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-3a9daaad955a673f0e331c529f9c6a78b72a52f865346d24b1d9641ad3949bd0 · product-d2e5bafb45ddc07ed6e5321897fc5100870a08cfe8b52fbd2dfb0a7ad150aa07

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
98135bd1-4ebd-4402-bc00-c85ae43acc76
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
2
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
324cc4cb-80ab-4ed7-bfad-1b19f8df68b49b8d9669-5582-4ff2-abcb-bb25275506c3

Assessments

CVSS by origin

9.8
NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
security@progress.comCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
ProgressSoftwareCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Direct CVE/CNA normalized decisions

9.8Priority eligible

ProgressSoftware

CVSS 3.1 · Primary · Original assertion · rank 1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Validation
Valid match
Recomputed
9.8
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.