CVE-2011-3274: n/a vulnerability

CVE-2011-3274: Unspecified vulnerability in Cisco IOS 12.2SRE before 12.2(33)SRE4, 15.0, and 15.1, and IOS XE 2.1.x throug...

Unspecified vulnerability in Cisco IOS 12.2SRE before 12.2(33)SRE4, 15.0, and 15.1, and IOS XE 2.1.x through 3.3.x, when an MPLS domain is configured, allows remote attackers to cause a denial of service (device crash) via a crafted IPv6 packet, related to an expired MPLS TTL, aka Bug ID CSCto07919.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 18:08 UTC (UTC+00:00)

Security readout for executives and security teams

This issue affects older Cisco IOS and IOS XE devices used in MPLS environments. A malformed IPv6 packet can crash an affected network device, causing denial of service. The main business risk is network availability disruption on legacy routing infrastructure. Exposure is most likely on legacy Cisco routers running affected IOS 12.2SRE, 15.0, 15.1, or IOS XE 2.1.x through 3.3.x with MPLS and IPv6-over-MPLS traffic paths configured. Prioritize if the organization still operates legacy Cisco MPLS infrastructure. The vulnerability is old, but affected routers can crash remotely, making it relevant for availability risk and technical debt reduction. Mitigation focus: Inventory Cisco IOS and IOS XE devices in MPLS domains.; Compare running releases against the affected version ranges.; Upgrade affected devices using Cisco’s advisory guidance..

Prepared: Jun 27, 2026, 17:48 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: Oct 3, 2011, 23:00 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

1Source links

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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