Evidence dossier

CVE-2017-6742

71.3–86.8Priority evidence range

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

Normalized restatement

A vulnerability in the SNMP implementation of could allow an authenticated, remote attacker to cause a reload of the affected system or to remotely execute code. An attacker could exploit this vulnerability by sending a crafted SNMP packet to the affected device.  The vulnerability is due to a buffer overflow in the affected code area. The vulnerability affects all versions of SNMP (versions 1, 2c, and 3). The attacker must know the SNMP read only community string (SNMP version 2c or earlier) or the user credentials (SNMPv3). An exploit could allow the attacker to execute arbitrary code and obtain full control of the system or to cause a reload of the affected system. Only traffic directed to the affected system can be used to exploit this vulnerability.

State: PUBLISHED
Published: Jul 17, 2017
Updated: Jan 12, 2026
Evidence coverage: 85%

CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS21.42%

2026-07-18 · v2026.06.15 · percentile 97.3%

Source stateNo scored conflict

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

Source comparison

Who said what

CISA-ADPindependent enrichment

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CISA ADP Vulnrichment

Jul 19, 2026Original evidence ↗

ciscooriginal assertion

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Jul 19, 2026Original evidence ↗

CVEderivative copy

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CVE Program Container

Jul 19, 2026Original evidence ↗

CISA KEVoriginal assertion

observed_exploitation

Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability

Jul 19, 2026Original evidence ↗

FIRST EPSSoriginal assertion

model_probability

Probability 0.214240000000; percentile 0.973350000000

Jul 19, 2026Original evidence ↗

Applicability

Cited product scope

Trace impact →

CiscoCisco IOS XE Software

[{"status": "affected", "version": "3.7.0S"}, {"status": "affected", "version": "3.7.1S"}, {"status": "affected", "version": "3.7.2S"}, {"status": "affected", "version": "3.7.3S"}, {"status": "affected", "version": "3.7.4S"}, {"status": "affected", "version": "3.7.5S"}, {"status": "affected", "version": "3.7.6S"}, {"status": "affected", "version": "3.7.7S"}, {"status": "affected", "version": "3.7.4aS"}, {"status": "affected", "version": "3.7.2tS"}, {"status": "affected", "version": "3.7.0bS"}, {"status": "affected", "version": "3.8.0S"}, {"status": "affected", "version": "3.8.1S"}, {"status": "affected", "version": "3.8.2S"}, {"status": "affected", "version": "3.9.1S"}, {"status": "affected", "version": "3.9.0S"}, {"status": "affected", "version": "3.9.2S"}, {"status": "affected", "version": "3.9.0aS"}, {"status": "affected", "version": "3.11.1S"}, {"status": "affected", "version": "3.11.2S"}, {"status": "affected", "version": "3.11.0S"}, {"status": "affected", "version": "3.11.3S"}, {"status": "affected", "version": "3.11.4S"}, {"status": "affected", "version": "3.12.0S"}, {"status": "affected", "version": "3.12.1S"}, {"status": "affected", "version": "3.12.2S"}, {"status": "affected", "version": "3.12.3S"}, {"status": "affected", "version": "3.12.0aS"}, {"status": "affected", "version": "3.12.4S"}, {"status": "affected", "version": "3.13.0S"}, {"status": "affected", "version": "3.13.1S"}, {"status": "affected", "version": "3.13.2S"}, {"status": "affected", "version": "3.13.3S"}, {"status": "affected", "version": "3.13.4S"}, {"status": "affected", "version": "3.13.5S"}, {"status": "affected", "version": "3.13.2aS"}, {"status": "affected", "version": "3.13.0aS"}, {"status": "affected", "version": "3.13.5aS"}, {"status": "affected", "version": "3.13.6S"}, {"status": "affected", "version": "3.13.7S"}, {"status": "affected", "version": "3.13.6aS"}, {"status": "affected", "version": "3.13.7aS"}, {"status": "affected", "version": "3.6.3E"}, {"status": "affected", "version": "3.6.6E"}, {"status": "affected", "version": "3.6.5bE"}, {"status": "affected", "version": "3.14.0S"}, {"status": "affected", "version": "3.14.1S"}, {"status": "affected", "version": "3.14.2S"}, {"status": "affected", "version": "3.14.3S"}, {"status": "affected", "version": "3.14.4S"}, {"status": "affected", "version": "3.15.0S"}, {"status": "affected", "version": "3.15.1S"}, {"status": "affected", "version": "3.15.2S"}, {"status": "affected", "version": "3.15.1cS"}, {"status": "affected", "version": "3.15.3S"}, {"status": "affected", "version": "3.15.4S"}, {"status": "affected", "version": "3.7.4E"}, {"status": "affected", "version": "3.7.5E"}, {"status": "affected", "version": "3.16.0S"}, {"status": "affected", "version": "3.16.1S"}, {"status": "affected", "version": "3.16.1aS"}, {"status": "affected", "version": "3.16.2S"}, {"status": "affected", "version": "3.16.0cS"}, {"status": "affected", "version": "3.16.3S"}, {"status": "affected", "version": "3.16.2bS"}, {"status": "affected", "version": "3.16.4aS"}, {"status": "affected", "version": "3.16.4bS"}, {"status": "affected", "version": "3.16.5S"}, {"status": "affected", "version": "3.16.4dS"}, {"status": "affected", "version": "3.17.0S"}, {"status": "affected", "version": "3.17.1S"}, {"status": "affected", "version": "3.17.2S"}, {"status": "affected", "version": "3.17.1aS"}, {"status": "affected", "version": "3.17.3S"}, {"status": "affected", "version": "16.2.1"}, {"status": "affected", "version": "16.2.2"}, {"status": "affected", "version": "16.3.1"}, {"status": "affected", "version": "16.3.2"}, {"status": "affected", "version": "16.3.3"}, {"status": "affected", "version": "16.3.1a"}, {"status": "affected", "version": "16.3.4"}, {"status": "affected", "version": "16.4.1"}, {"status": "affected", "version": "16.4.2"}, {"status": "affected", "version": "16.5.1"}, {"status": "affected", "version": "16.5.1b"}, {"status": "affected", "version": "3.18.0aS"}, {"status": "affected", "version": "3.18.0S"}, {"status": "affected", "version": "3.18.1S"}, {"status": "affected", "version": "3.18.0SP"}, {"status": "affected", "version": "3.18.1SP"}, {"status": "affected", "version": "3.18.1aSP"}, {"status": "affected", "version": "3.18.2aSP"}]

unknown

IntelliShieldUniversal Product

[{"status": "affected", "version": "N/A"}]unknown

Unknown vendorUnknown product

cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*; start including 12.0; end including 12.4supported

Unknown vendorUnknown product

cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*; start including 15.0; end including 15.6supported

Unknown vendorUnknown product

cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*; start including 2.2.0; end including 3.17supported

Assessments

CVSS by origin

8.8

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

9.0

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

8.8

psirt@cisco.comCVSS 3.0 · role SecondaryCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.8

ciscoCVSS 3.0 · role unknownCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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.