CVE-2016-9205: n/a Cisco IOS XR vulnerability

CVE-2016-9205: A vulnerability in the HTTP 2.0 request handling code of Cisco IOS XR Software could allow an unauthenticat...

A vulnerability in the HTTP 2.0 request handling code of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause the Event Management Service daemon (emsd) to crash, resulting in a denial of service (DoS) condition. More Information: CSCvb14425. Known Affected Releases: 6.1.1.BASE. Known Fixed Releases: 6.1.2.6i.MGBL 6.1.22.9i.MGBL 6.2.1.14i.MGBL.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 02:42 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2016-9205 affects Cisco IOS XR HTTP/2 request handling. A remote unauthenticated attacker could crash the Event Management Service daemon, creating a denial-of-service condition. The source identifies IOS XR 6.1.1.BASE as affected and lists fixed releases, but provides no CVSS score. Exposure is most likely on Cisco IOS XR systems running the affected 6.1.1.BASE release with HTTP/2-capable management or web services reachable from untrusted networks. Prioritize remediation for internet-facing or broadly reachable management planes. The main business risk is device management instability and service disruption, not confirmed data theft. Mitigation focus: Check Cisco advisory guidance for the affected device models and configurations.; Upgrade affected IOS XR 6.1.1.BASE systems to a listed fixed release.; Restrict management-plane HTTP/2 access to trusted administrative networks..

Prepared: Jun 13, 2026, 13:16 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Dec 14, 2016, 00:37 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161207-ios-xrCVE reference · x_refsource_CONFIRM

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/aCisco IOS XRCisco IOS XRListed

Weakness

CWE details

No CWE listed

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