HIGH KEV
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
Published Jul 17, 2017 ·Due May 10, 2023
8.8
HIGHCVSS 3.1
EPSS 21.42%
Description
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.
Affected products
-
- Version 16.2.1StatusaffectedConstraints-
- Version 16.2.2StatusaffectedConstraints-
- Version 16.3.1StatusaffectedConstraints-
- Version 16.3.1aStatusaffectedConstraints-
- Version 16.3.2StatusaffectedConstraints-
- Version 16.3.3StatusaffectedConstraints-
- Version 16.3.4StatusaffectedConstraints-
- Version 16.4.1StatusaffectedConstraints-
- Version 16.4.2StatusaffectedConstraints-
- Version 16.5.1StatusaffectedConstraints-
- Version 16.5.1bStatusaffectedConstraints-
- Version 3.11.0SStatusaffectedConstraints-
- Version 3.11.1SStatusaffectedConstraints-
- Version 3.11.2SStatusaffectedConstraints-
- Version 3.11.3SStatusaffectedConstraints-
- Version 3.11.4SStatusaffectedConstraints-
- Version 3.12.0SStatusaffectedConstraints-
- Version 3.12.0aSStatusaffectedConstraints-
- Version 3.12.1SStatusaffectedConstraints-
- Version 3.12.2SStatusaffectedConstraints-
- Version 3.12.3SStatusaffectedConstraints-
- Version 3.12.4SStatusaffectedConstraints-
- Version 3.13.0SStatusaffectedConstraints-
- Version 3.13.0aSStatusaffectedConstraints-
- Version 3.13.1SStatusaffectedConstraints-
- Version 3.13.2SStatusaffectedConstraints-
- Version 3.13.2aSStatusaffectedConstraints-
- Version 3.13.3SStatusaffectedConstraints-
- Version 3.13.4SStatusaffectedConstraints-
- Version 3.13.5SStatusaffectedConstraints-
- Version 3.13.5aSStatusaffectedConstraints-
- Version 3.13.6SStatusaffectedConstraints-
- Version 3.13.6aSStatusaffectedConstraints-
- Version 3.13.7SStatusaffectedConstraints-
- Version 3.13.7aSStatusaffectedConstraints-
- Version 3.14.0SStatusaffectedConstraints-
- Version 3.14.1SStatusaffectedConstraints-
- Version 3.14.2SStatusaffectedConstraints-
- Version 3.14.3SStatusaffectedConstraints-
- Version 3.14.4SStatusaffectedConstraints-
- Version 3.15.0SStatusaffectedConstraints-
- Version 3.15.1SStatusaffectedConstraints-
- Version 3.15.1cSStatusaffectedConstraints-
- Version 3.15.2SStatusaffectedConstraints-
- Version 3.15.3SStatusaffectedConstraints-
- Version 3.15.4SStatusaffectedConstraints-
- Version 3.16.0SStatusaffectedConstraints-
- Version 3.16.0cSStatusaffectedConstraints-
- Version 3.16.1SStatusaffectedConstraints-
- Version 3.16.1aSStatusaffectedConstraints-
- Version 3.16.2SStatusaffectedConstraints-
- Version 3.16.2bSStatusaffectedConstraints-
- Version 3.16.3SStatusaffectedConstraints-
- Version 3.16.4aSStatusaffectedConstraints-
- Version 3.16.4bSStatusaffectedConstraints-
- Version 3.16.4dSStatusaffectedConstraints-
- Version 3.16.5SStatusaffectedConstraints-
- Version 3.17.0SStatusaffectedConstraints-
- Version 3.17.1SStatusaffectedConstraints-
- Version 3.17.1aSStatusaffectedConstraints-
- Version 3.17.2SStatusaffectedConstraints-
- Version 3.17.3SStatusaffectedConstraints-
- Version 3.18.0SStatusaffectedConstraints-
- Version 3.18.0SPStatusaffectedConstraints-
- Version 3.18.0aSStatusaffectedConstraints-
- Version 3.18.1SStatusaffectedConstraints-
- Version 3.18.1SPStatusaffectedConstraints-
- Version 3.18.1aSPStatusaffectedConstraints-
- Version 3.18.2aSPStatusaffectedConstraints-
- Version 3.6.3EStatusaffectedConstraints-
- Version 3.6.5bEStatusaffectedConstraints-
- Version 3.6.6EStatusaffectedConstraints-
- Version 3.7.0SStatusaffectedConstraints-
- Version 3.7.0bSStatusaffectedConstraints-
- Version 3.7.1SStatusaffectedConstraints-
- Version 3.7.2SStatusaffectedConstraints-
- Version 3.7.2tSStatusaffectedConstraints-
- Version 3.7.3SStatusaffectedConstraints-
- Version 3.7.4EStatusaffectedConstraints-
- Version 3.7.4SStatusaffectedConstraints-
- Version 3.7.4aSStatusaffectedConstraints-
- Version 3.7.5EStatusaffectedConstraints-
- Version 3.7.5SStatusaffectedConstraints-
- Version 3.7.6SStatusaffectedConstraints-
- Version 3.7.7SStatusaffectedConstraints-
- Version 3.8.0SStatusaffectedConstraints-
- Version 3.8.1SStatusaffectedConstraints-
- Version 3.8.2SStatusaffectedConstraints-
- Version 3.9.0SStatusaffectedConstraints-
- Version 3.9.0aSStatusaffectedConstraints-
- Version 3.9.1SStatusaffectedConstraints-
- Version 3.9.2SStatusaffectedConstraints-
- Version
-
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Cisco | Cisco IOS XE Software | n/a |
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| IntelliShield | Universal Product | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
8.8 HIGH NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
8.8 HIGH CVE.org
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
9.0 HIGH NVD
AV:N/AC:L/Au:S/C:C/I:C/A:C
Access Vector Network
Access Complexity Low
Authentication Single
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
Listed in CISA KEV KEV
Date Added
Apr 19, 2023
Patch Due
May 10, 2023
Required Action
Apply updates per vendor instructions.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Nov 8, 2024 · SSVC 2.0.3
21.42% 0.21424
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.21424
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (46 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 21.42% (0.21424) | 97.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 21.42% (0.21424) | 97.29th | v5 (v2026.06.15) |
| May 22, 2026 | 14.73% (0.14729) | 94.58th | v4 (v2025.03.14) |
| May 18, 2026 | 12.98% (0.12978) | 94.15th | v4 (v2025.03.14) |
| May 6, 2026 | 11.61% (0.11608) | 93.69th | v4 (v2025.03.14) |
| May 3, 2026 | 10.57% (0.10573) | 93.30th | v4 (v2025.03.14) |
| Apr 30, 2026 | 13.70% (0.13702) | 94.29th | v4 (v2025.03.14) |
| Apr 18, 2026 | 11.08% (0.11084) | 93.48th | v4 (v2025.03.14) |
| Mar 20, 2026 | 6.78% (0.06783) | 91.21th | v4 (v2025.03.14) |
| Mar 17, 2026 | 5.28% (0.05277) | 89.88th | v4 (v2025.03.14) |
| Mar 14, 2026 | 6.38% (0.06384) | 90.87th | v4 (v2025.03.14) |
| Jan 18, 2026 | 5.23% (0.05228) | 89.64th | v4 (v2025.03.14) |
| Dec 27, 2025 | 3.60% (0.03599) | 87.45th | v4 (v2025.03.14) |
| Sep 24, 2025 | 4.81% (0.04809) | 89.06th | v4 (v2025.03.14) |
| Aug 28, 2025 | 3.60% (0.03599) | 87.31th | v4 (v2025.03.14) |
| Aug 1, 2025 | 5.16% (0.05157) | 89.56th | v4 (v2025.03.14) |
| Jul 4, 2025 | 7.88% (0.07884) | 91.59th | v4 (v2025.03.14) |
| Jun 30, 2025 | 5.56% (0.05565) | 89.81th | v4 (v2025.03.14) |
| Jun 26, 2025 | 7.37% (0.07369) | 91.23th | v4 (v2025.03.14) |
| Mar 30, 2025 | 5.56% (0.05565) | 89.33th | v4 (v2025.03.14) |
| Mar 29, 2025 | 16.20% (0.16195) | 91.42th | v4 (v2025.03.14) |
| Mar 28, 2025 | 5.56% (0.05565) | 89.34th | v4 (v2025.03.14) |
| Mar 27, 2025 | 16.20% (0.16195) | 93.90th | v4 (v2025.03.14) |
| Mar 25, 2025 | 5.56% (0.05565) | 89.28th | v4 (v2025.03.14) |
| Mar 20, 2025 | 4.18% (0.04177) | 87.72th | v4 (v2025.03.14) |
| Mar 19, 2025 | 12.60% (0.12597) | 93.10th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.18% (0.04177) | 87.94th | v4 (v2025.03.14) |
| Dec 17, 2024 | 5.23% (0.05231) | 92.91th | v3 (v2023.03.01) |
| Jun 28, 2024 | 1.47% (0.01469) | 86.84th | v3 (v2023.03.01) |
| May 7, 2024 | 1.23% (0.01227) | 85.28th | v3 (v2023.03.01) |
| Mar 29, 2024 | 0.87% (0.00868) | 82.02th | v3 (v2023.03.01) |
| Feb 18, 2024 | 0.61% (0.00613) | 78.07th | v3 (v2023.03.01) |
| Sep 12, 2023 | 0.63% (0.00627) | 76.39th | v3 (v2023.03.01) |
| Jun 27, 2023 | 0.73% (0.00735) | 78.19th | v3 (v2023.03.01) |
| May 27, 2023 | 0.72% (0.00717) | 77.75th | v3 (v2023.03.01) |
| May 8, 2023 | 0.74% (0.00740) | 78.08th | v3 (v2023.03.01) |
| Apr 20, 2023 | 0.94% (0.00939) | 80.79th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.66% (0.00663) | 76.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.70% (0.04695) | 89.17th | v2 (v2022.01.01) |
| Apr 13, 2022 | 4.70% (0.04695) | 88.11th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.57% (0.04571) | 87.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.57% (0.04571) | 74.15th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.83% (0.01828) | 35.38th | v1 |
| Jan 6, 2022 | 1.83% (0.01828) | 34.69th | v1 |
| Sep 1, 2021 | 1.83% (0.01828) | 74.99th | v1 |
| Apr 14, 2021 | 1.83% (0.01828) | 0.00th | v1 |
Weaknesses (1)
References (5)
- http://www.securityfocus.com/bid/99345 Broken LinkThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038808 Broken LinkThird Party AdvisoryVDB Entry
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170629-snmp Vendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170629-snmp Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6742 government-resourceUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/99345 | Broken LinkThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1038808 | Broken LinkThird Party AdvisoryVDB Entry | |
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170629-snmp | Vendor Advisory | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170629-snmp | Vendor Advisory | |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-6742 | government-resourceUS Government Resource |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner cisco
Published Jul 17, 2017
Updated Jan 12, 2026
Reserved Mar 9, 2017
Link CVE-2017-6742
CISA Vulnrichment
Updated Nov 8, 2024