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PatchSiren cyber security CVE debrief

CVE-2017-6736 Cisco CVE debrief

CVE-2017-6736 is a Cisco IOS and IOS XE Software SNMP remote code execution vulnerability. CISA added it to the Known Exploited Vulnerabilities catalog on 2022-03-03 and set a remediation due date of 2022-03-24, which means defenders should treat it as actively exploited and prioritize vendor-directed patching.

Vendor
Cisco
Product
IOS and IOS XE Software
CVSS
HIGH 8.8
CISA KEV
Listed
Original CVE published
2022-03-03
Original CVE updated
2022-03-03
Advisory published
2022-03-03
Advisory updated
2022-03-03

Who should care

Cisco IOS and IOS XE operators, network infrastructure teams, and security teams responsible for SNMP-enabled Cisco devices should prioritize this issue.

Technical summary

Based on the supplied CVE title and CISA KEV metadata, this vulnerability affects Cisco IOS and IOS XE Software and is associated with SNMP remote code execution. The CISA KEV record identifies it as known exploited and directs organizations to apply updates per vendor instructions. The provided corpus does not include affected versions, root cause details, or exploit conditions, so those specifics are not stated here.

Defensive priority

Urgent

Recommended defensive actions

  • Inventory Cisco IOS and IOS XE devices in your environment and confirm which systems may be exposed to this CVE.
  • Apply Cisco-provided updates and remediation guidance as soon as possible; CISA’s KEV entry specifies "Apply updates per vendor instructions."
  • Prioritize remediation for critical and externally reachable network infrastructure devices.
  • Verify remediation by checking device versions and comparing them against Cisco and official vulnerability records.
  • Monitor Cisco network devices for abnormal management-plane activity while remediation is in progress.

Evidence notes

This debrief is based only on the supplied CVE metadata, the CISA KEV source item, and the official links provided for CVE.org, NVD, and CISA. The corpus contains the vulnerability name, KEV dates, and required action, but not vendor advisory text or exploit details; unsupported specifics have been omitted.

Sources and references

Verified primary and authoritative sources

  • CVE-2017-6736 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2017-6736

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2017-6736 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2017-6736

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

  • CISA Known Exploited Vulnerabilities catalog

    Publisher, destination, and source semantics verified

    URL: https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Cybersecurity and Infrastructure Security Agency - Official CISA catalog of vulnerabilities known to be exploited in the wild.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json

    cisa_kev

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.