Evidence dossier

CVE-2017-12234

CVE-2017-12234

64.1–79.8Priority evidence range

As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Multiple vulnerabilities in the implementation of the Common Industrial Protocol (CIP) feature in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerabilities are due to the improper parsing of crafted CIP packets destined to an affected device. An attacker could exploit these vulnerabilities by sending crafted CIP packets to be processed by an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvc43709.

State: PUBLISHED
Published: Sep 28, 2017
Updated: Jan 12, 2026
Evidence coverage: 85%

CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS7.13%

2026-07-18 · v2026.06.15 · percentile 93.5%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment

container

CISA ADP Vulnrichment

Jul 19, 2026Original evidence ↗

ciscooriginal assertion

container

Multiple vulnerabilities in the implementation of the Common Industrial Protocol (CIP) feature in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerabilities are due to the improper parsing of crafted CIP packets destined to an affected device. An attacker could exploit these vulnerabilities by sending crafted CIP packets to be processed by an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvc43709.

Jul 19, 2026Original evidence ↗

CVEderivative copy

container

CVE Program Container

Jul 19, 2026Original evidence ↗

CISA KEVoriginal assertion

observed_exploitation

Cisco IOS Software Common Industrial Protocol Request Denial-of-Service Vulnerability

Jul 19, 2026Original evidence ↗

FIRST EPSSoriginal assertion

model_probability

Probability 0.071280000000; percentile 0.935480000000

Jul 19, 2026Original evidence ↗

Applicability

Cited product scope

Trace impact →

n/aCisco IOS

[{"status": "affected", "version": "Cisco IOS"}]unknown

Unknown vendorUnknown product

cpe:2.3:h:cisco:1000_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1100-4g\/6g_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1100-4g_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1100-4gltegb_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1100-4gltena_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1100-4p:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1100-4p_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1100-6g_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1100-8p:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1100-8p_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1100_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1100-lte_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1100_terminal_services_gateways:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1101-4p:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1101-4p_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1101_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1109-2p:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1109-4p:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1111-4pwe:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1111-8pwb:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1111x-8p:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1113-8plteeawe:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1113-8pmwe:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1113-8pwe:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1116-4plteeawe:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1116-4pwe:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1117-4plteeawe:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1117-4pmlteeawe:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1117-4pmwe:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1117-4pwe:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1120:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1120_connected_grid_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1120_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1131_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1160_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1801_integrated_service_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1802_integrated_service_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1803_integrated_service_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1811_integrated_service_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1812_integrated_service_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1841_integrated_service_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1861_integrated_service_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1905_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1906c_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1921_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1941_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:1941w_integrated_services_router:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:catalyst_ie3200_rugged_switch:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:catalyst_ie3300_rugged_switch:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:catalyst_ie3400_heavy_duty_switch:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:catalyst_ie3400_rugged_switch:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:catalyst_ie9300:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:esr-6300-con-k9:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:h:cisco:esr-6300-ncp-k9:-:*:*:*:*:*:*:*constrained

Unknown vendorUnknown product

cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*; start including 12.4; end including 15.6supported

Assessments

CVSS by origin

7.5

nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.8

nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:L/Au:N/C:N/I:N/A:C

7.5

134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS: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 unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Limitations and unknowns

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; unresolved scope remains unknown.
NVD-carried upstream facts remain derivative and are not independent corroboration.
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.
Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.