CASCACascade Atlas

Evidence dossier

CVE-2023-29552

The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services.

Exploited in the wild (CISA KEV since Nov 8, 2023). NVD reports CVSS 3.1 7.5. EPSS estimates 65.9% exploit likelihood as of Aug 27, 2026.

81.5–82.1Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.

State
PUBLISHED
Published
Apr 25, 2023
Updated
Oct 21, 2025
Evidence coverage
98%

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
    mitre

    Record text: The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.

    Inspect raw assertion
    Field
    container
    Value
    The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: Service Location Protocol (SLP) Denial-of-Service Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Service Location Protocol (SLP) Denial-of-Service Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 65.87% probability · 99.21th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.658730000000; percentile 0.992120000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Nov 8, 2023 · first observed Jul 19, 2026

Exploit likelihood65.87%

FIRST EPSS · score date Aug 27, 2026 · 99.2th percentile · first observed Aug 27, 2026

SeverityCVSS 7.5

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

The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.

Inspect raw assertion
Field
container
Value
The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

Service Location Protocol (SLP) Denial-of-Service Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Service Location Protocol (SLP) Denial-of-Service Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

65.87% probability · 99.21th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.658730000000; percentile 0.992120000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
9Underlying assertions
5Canonical products
9Target assertions
0Constraint assertions

Grouped from 4 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 · APPLICATIONnetappsmi-s_providerVulnerable target · 1 assertions
Version not applicableCanonical identity product-bf785444c0646b1f8aa5b5bcb4513cf41b7bbb6b6b29847d2b11678ea5ebadabLinked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:netapp:smi-s_provider:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    4bb0fdcf-3750-44c6-ac5c-0cc2aad14093
NVD CPE · APPLICATIONservice_location_protocol_projectservice_location_protocolVulnerable target · 1 assertions
Version not applicableCanonical identity product-4cff2054875359364cd58358c06c9ce49d1503b6eb7bbd3f2c12d4eee4c9e956Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:service_location_protocol_project:service_location_protocol:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    64e7c090-f632-4975-9c4c-e89100088bf4
NVD CPE · OPERATING SYSTEMsuselinux_enterprise_serverVulnerable target · 5 assertions
Version 11; Version 12; Version 15Canonical identity product-4f2240e45c4385f8980643ce838561b90551012dc317022ee66a7d71a9db8e28Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:suse:linux_enterprise_server:12:-:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    15fc9014-bd85-4382-9d04-c0703e901d7a
  2. cpe:2.3:o:suse:linux_enterprise_server:15:*:*:*:*:sap:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 5
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    c665a768-dbda-4197-9159-a2791e98a84f
  3. cpe:2.3:o:suse:linux_enterprise_server:12:-:*:*:*:sap:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 3
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    5d18aa86-88af-481b-a24f-429bf79264ab
  4. cpe:2.3:o:suse:linux_enterprise_server:15:*:*:*:*:-:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 4
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    b1b7847d-6c17-4817-b71e-c034894b70a9
  5. cpe:2.3:o:suse:linux_enterprise_server:11:-:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    f13f07cc-739b-465c-9184-0e9d708bd4c7
NVD CPE · APPLICATIONsusemanager_serverVulnerable target · 1 assertions
Version not applicableCanonical identity product-685b96dee06af953277b521fa9ffc43f79d2cca232623f0e5b0194a49d221c31Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:a:suse:manager_server:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a4e8ce0b-23e7-45bf-aafb-ad12dc7eb0f0
NVD CPE · OPERATING SYSTEMvmwareesxiVulnerable target · 1 assertions
Any version (unconstrained) (< 7.0)Canonical identity product-23a252291fc54c7d970af8a89ad978d1de708dae5df8285a6f74b35881b5bd32Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:vmware:esxi:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    2 · node/0 · match 0
    Logic
    OR
    Version bounds
    through excluding 7.0
    Match ID
    d223dd19-0441-4ebd-9f51-5e9012434517

Affected-product evidence

Accepted scope and product mapping

5 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-6b310233dbc1eceadb11ae200191b71c5a499cd0c4916b064b08d7f851b21f9f · product-23a252291fc54c7d970af8a89ad978d1de708dae5df8285a6f74b35881b5bd32

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
43ff89ff-4197-48cb-b691-7f3c2e5da3ae
Mapping establishedEvidence supported

vendor-1fb4b7c7e80bac57be97bfcebad68372e6a5848790698135ce4d6598d7a2c227 · product-4cff2054875359364cd58358c06c9ce49d1503b6eb7bbd3f2c12d4eee4c9e956

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
bf31167b-70d4-44e9-8980-81cd1ad82b42
Mapping establishedEvidence supported

vendor-6bbcd126779403146e957d68529786b086421e0676d9e90a4d53d03594694fb2 · product-4f2240e45c4385f8980643ce838561b90551012dc317022ee66a7d71a9db8e28

Source class
Nvd cpe vulnerable target
Assertions
5
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
8b08ea78-39f4-4adc-9e75-dbbc0a37031dae931247-6c70-44a8-ab12-5856d59c2cb8b0d30eea-55a4-4438-828a-8b736e94615cca3c3024-3246-4ac9-b29c-7f9d4bc8652cf4d0ecea-8b8f-4242-8b76-a82999cf5844
Mapping establishedEvidence supported

vendor-6bbcd126779403146e957d68529786b086421e0676d9e90a4d53d03594694fb2 · product-685b96dee06af953277b521fa9ffc43f79d2cca232623f0e5b0194a49d221c31

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
45d7c7b0-34c3-4fd1-bf28-527e2ce283e3
Mapping establishedEvidence supported

vendor-d1dcf2e2192106a1eb34744930a80b83005fa5d60195c923256e69ac39974aed · product-bf785444c0646b1f8aa5b5bcb4513cf41b7bbb6b6b29847d2b11678ea5ebadab

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
947ab4ad-4329-4a03-9258-96125448976b
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
066b2df3-af3c-4924-87e0-bb4274f2f2fe

Assessments

CVSS by origin

7.5
NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5
CVE Program sourceCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5
CISA-ADPCVSS 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:N/I:N/A:H

Direct CVE/CNA normalized decisions

7.5Priority eligible

CISA-ADP

CVSS 3.1 · Secondary · Independent enrichment · rank 2

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Validation
Valid match
Recomputed
7.5
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.