SARA / Free Tools / CVE / CVE-2017-6738

CVE-2017-6738 — Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability

The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload. An attacker could ex

CVSS
8.8 HIGH
EPSS
28.84% (top 3.50%)
CWE
CWE-119
Published
2017-07-17T21:00:00.000Z
Last modified
2025-10-21T23:55:37.567Z
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA KEV — Actively Exploited
Added to KEV
2022-03-03
BOD 22-01 due
2022-03-24
Ransomware use
Unknown

01What is this vulnerability?

The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE Software contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload. An attacker could exploit these vulnerabilities by sending a crafted SNMP packet to an affected system via IPv4 or IPv6. Only traffic…

02Affected products

VendorProductVersions
CiscoIOS12.2(53)SE1, 12.2(55)SE, 12.2(50)SE2, 12.2(50)SE1, 12.2(50)SE5, 12.2(53)SE, 12.2(55)SE3, 12.2(55)SE2, 12.2(52)SE, 12.2(58)SE, 12.2(50)SE3, 12.2(55)SE1, 12.2(53)SE2, 12.2(52)SE1, 12.2(54)SE, 12.2(50)SE4, 12.2(50)SE, 12.2(58)SE1, 12.2(55)SE4, 12.2(58)SE2, 12.2(55)SE5, 12.2(55)SE6, 12.2(55)SE7, 12.2(55)SE8, 12.2(55)SE9, 12.2(55)SE10, 12.2(55)SE11, 12.2(53)EX, 12.2(52)EX, 12.2(55)EX, 12.2(52)EX1, 12.2(55)EX1, 12.2(55)EX2, 12.2(55)EX3, 12.2(58)EX, 12.2(55)EY, 12.2(52)EY1, 12.2(52)EY, 12.2(53)EY, 12.2(52)EY2, 12.2(52)EY1b, 12.2(52)EY1c, 12.2(58)EY, 12.2(52)EY3, 12.2(52)EY2a, 12.2(58)EY1, 12.2(52)EY4, 12.2(52)EY3a, 12.2(58)EY2, 12.2(58)EZ, 12.2(53)EZ, 12.2(55)EZ, 12.2(60)EZ, 12.2(60)EZ1, 12.2(60)EZ2, 12.2(60)EZ3, 12.2(60)EZ4, 12.2(60)EZ5, 12.2(60)EZ6, 12.2(60)EZ7, 12.2(60)EZ8, 12.2(60)EZ9, 12.2(60)EZ10, 12.2(60)EZ11, 12.2(50)SG3, 12.2(53)SG, 12.2(50)SG6, 12.2(53)SG1, 12.2(53)SG2, 12.2(50)SG5, 12.2(53)SG3, 12.2(50)SG8, 12.2(50)SG2, 12.2(54)SG1, 12.2(50)SG1, 12.2(52)SG, 12.2(54)SG, 12.2(50)SG, 12.2(50)SG7, 12.2(53)SG4, 12.2(50)SG4, 12.2(53)SG5, 12.2(53)SG6, 12.2(53)SG7, 12.2(53)SG8, 12.2(53)SG9, 12.2(53)SG10, 12.2(53)SG11, 12.2(33)SXI, 12.2(33)SXI1, 12.2(52)XO, 12.2(54)XO, 12.2(50)SQ2, 12.2(50)SQ1, 12.2(50)SQ, 12.2(50)SQ3, 12.2(50)SQ4, 12.2(50)SQ5, 12.2(50)SQ6, 12.2(50)SQ7, 15.0(1)XO1, 15.0(1)XO, 15.0(2)XO, 15.3(1)T, 15.3(2)T, 15.3(1)T1, 15.3(1)T2, 15.3(1)T3, 15.3(1)T4, 15.3(2)T1, 15.3(2)T2, 15.3(2)T3, 15.3(2)T4, 15.0(1)EY, 15.0(1)EY1, 15.0(1)EY2, 15.0(2)EY, 15.0(2)EY1, 15.0(2)EY2, 15.0(2)EY3, 12.2(54)WO, 15.0(1)SE, 15.0(2)SE, 15.0(1)SE1, 15.0(1)SE2, 15.0(1)SE3, 15.0(2)SE1, 15.0(2)SE2, 15.0(2)SE3, 15.0(2)SE4, 15.0(2)SE5, 15.0(2)SE6, 15.0(2)SE7, 15.0(2)SE8, 15.0(2)SE9, 15.0(2)SE10, 15.0(2)SE10a, 15.1(1)SG, 15.1(2)SG, 15.1(1)SG1, 15.1(1)SG2, 15.1(2)SG1, 15.1(2)SG2, 15.1(2)SG3, 15.1(2)SG4, 15.1(2)SG5, 15.1(2)SG6, 15.1(2)SG7, 15.1(2)SG8, 15.2(4)M, 15.2(4)M1, 15.2(4)M2, 15.2(4)M4, 15.2(4)M3, 15.2(4)M5, 15.2(4)M8, 15.2(4)M10, 15.2(4)M7, 15.2(4)M6, 15.2(4)M9, 15.2(4)M6a, 15.2(4)M11, 15.0(2)SG, 15.0(2)SG1, 15.0(2)SG2, 15.0(2)SG3, 15.0(2)SG4, 15.0(2)SG5, 15.0(2)SG6, 15.0(2)SG7, 15.0(2)SG8, 15.0(2)SG9, 15.0(2)SG10, 15.0(2)SG11, 15.0(2)SG11a, 15.0(1)EX, 15.0(2)EX, 15.0(2)EX1, 15.0(2)EX2, 15.0(2)EX3, 15.0(2)EX4, 15.0(2)EX5, 15.0(2)EX8, 15.0(2a)EX5, 15.0(2)EX10, 15.0(2)EX11, 15.0(2)EX13, 15.0(2)EX12, 15.2(2)GC, 15.2(3)GC, 15.2(3)GC1, 15.2(4)GC, 15.2(4)GC2, 15.2(4)GC3, 15.4(1)T, 15.4(2)T, 15.4(1)T2, 15.4(1)T1, 15.4(1)T3, 15.4(2)T1, 15.4(2)T3, 15.4(2)T2, 15.4(1)T4, 15.4(2)T4, 15.0(2)EA, 15.0(2)EA1, 15.2(1)E, 15.2(2)E, 15.2(1)E1, 15.2(3)E, 15.2(1)E2, 15.2(1)E3, 15.2(2)E1, 15.2(4)E, 15.2(3)E1, 15.2(2)E2, 15.2(2a)E1, 15.2(2)E3, 15.2(2a)E2, 15.2(3)E2, 15.2(3a)E, 15.2(3)E3, 15.2(4)E1, 15.2(2)E4, 15.2(2)E5, 15.2(4)E2, 15.2(3)E4, 15.2(5)E, 15.2(4)E3, 15.2(2)E6, 15.2(5a)E, 15.2(5)E1, 15.2(5b)E, 15.2(2)E5a, 15.2(5c)E, 15.2(2)E5b, 15.2(5a)E1, 15.2(4)E4, 15.2(5)E2, 15.3(3)M, 15.3(3)M1, 15.3(3)M2, 15.3(3)M3, 15.3(3)M5, 15.3(3)M4, 15.3(3)M6, 15.3(3)M7, 15.3(3)M8, 15.3(3)M9, 15.3(3)M8a, 15.2(4)JN, 15.0(2)EZ, 15.2(1)EY, 15.0(2)EJ, 15.0(2)EJ1, 15.2(1)SY, 15.2(1)SY1, 15.2(1)SY0a, 15.2(1)SY2, 15.2(2)SY, 15.2(1)SY1a, 15.2(2)SY1, 15.2(2)SY2, 15.2(1)SY3, 15.2(1)SY4, 15.2(5)EX, 15.2(4)JAZ1, 15.0(2)EK, 15.0(2)EK1, 15.4(1)CG, 15.4(1)CG1, 15.4(2)CG, 15.2(2)EB, 15.2(2)EB1, 15.2(2)EB2, 15.5(1)T, 15.5(1)T1, 15.5(2)T, 15.5(1)T2, 15.5(1)T3, 15.5(2)T1, 15.5(2)T2, 15.5(2)T3, 15.5(2)T4, 15.5(1)T4, 15.2(2)EA, 15.2(2)EA1, 15.2(2)EA2, 15.2(3)EA, 15.2(4)EA, 15.2(4)EA1, 15.2(2)EA3, 15.2(4)EA3, 15.2(5)EA, 15.2(4)EA4, 15.2(4)EA5, 15.5(3)M, 15.5(3)M1, 15.5(3)M0a, 15.5(3)M2, 15.5(3)M3, 15.5(3)M4, 15.5(3)M4a, 15.5(3)M5, 15.3(3)JAA1, 15.0(2)SQD, 15.0(2)SQD1, 15.0(2)SQD2, 15.0(2)SQD3, 15.0(2)SQD4, 15.0(2)SQD5, 15.0(2)SQD6, 15.6(1)T, 15.6(2)T, 15.6(1)T0a, 15.6(1)T1, 15.6(2)T1, 15.6(1)T2, 15.6(2)T2, 15.6(1)T3, 15.3(1)SY, 15.3(1)SY1, 15.3(1)SY2, 15.6(3)M, 15.6(3)M1, 15.6(3)M0a, 15.6(3)M1b, 15.6(3)M2, 15.6(3)M2a, 15.2(4)EC1, 15.2(4)EC2, 15.3(3)JPC5, 15.4(1)SY, 15.4(1)SY1, 15.4(1)SY2, 15.5(1)SY, 15.3(3)JPR1
CiscoCisco IOS XE Software3.2.0SG, 3.2.1SG, 3.2.2SG, 3.2.3SG, 3.2.4SG, 3.2.5SG, 3.2.6SG, 3.2.7SG, 3.2.8SG, 3.2.9SG, 3.2.10SG, 3.2.11SG, 3.3.0SG, 3.3.2SG, 3.3.1SG, 3.2.0SE, 3.2.1SE, 3.2.2SE, 3.2.3SE, 3.3.0SE, 3.3.1SE, 3.3.2SE, 3.3.3SE, 3.3.4SE, 3.3.5SE, 3.4.0SG, 3.4.2SG, 3.4.1SG, 3.4.3SG, 3.4.4SG, 3.4.5SG, 3.4.6SG, 3.4.7SG, 3.4.8SG, 3.5.0E, 3.5.1E, 3.5.2E, 3.5.3E, 3.6.0E, 3.6.1E, 3.6.2aE, 3.6.2E, 3.6.3E, 3.6.4E, 3.6.5E, 3.6.6E, 3.6.5aE, 3.6.5bE, 3.3.0SQ, 3.3.1SQ, 3.4.0SQ, 3.4.1SQ, 3.7.0E, 3.7.1E, 3.7.2E, 3.7.3E, 3.7.4E, 3.7.5E, 3.5.0SQ, 3.5.1SQ, 3.5.2SQ, 3.5.3SQ, 3.5.4SQ, 3.5.5SQ, 3.5.6SQ, 16.1.1, 16.1.2, 16.1.3, 16.2.1, 16.2.2, 3.8.0E, 3.8.1E, 3.8.2E, 3.8.3E, 3.8.4E, 16.3.1, 16.3.2, 16.3.3, 16.3.1a, 16.3.4, 16.4.1, 16.4.2, 16.5.1, 16.5.1a, 16.5.1b, 3.18.1aSP, 3.18.2aSP, 3.9.0E, 3.9.1E, 3.9.2E, 17.11.99SW

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-03-03. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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