Unrated severityNVD Advisory· Published Jul 28, 2011· Updated Jun 16, 2026

CVE-2011-2549

Description

Unspecified vulnerability in Cisco IOS XR 4.1.x before 4.1.1 on Cisco Aggregation Services Routers (ASR) 9000 series devices allows remote attackers to cause a denial of service (line-card reload) via an IPv4 packet, aka Bug ID CSCtr26695.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Cisco Systems, Inc./Asr 9006
cpe:2.3:h:cisco:asr_9006_router:*:*:*:*:*:*:*:*
Cisco Systems, Inc./Asr 9010
cpe:2.3:h:cisco:asr_9010_router:*:*:*:*:*:*:*:*
Cisco Systems, Inc./iOS Xr2 versions
cpe:2.3:o:cisco:ios_xr:4.1.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:cisco:ios_xr:4.1.0:*:*:*:*:*:*:*
- (no CPE)range: 4.1.x before 4.1.1

Patches

Vulnerability mechanics

References

secunia.com/advisories/45333nvdVendor Advisory
www.cisco.com/en/US/products/products_security_advisory09186a0080b89155.shtmlnvdVendor Advisory
securitytracker.com/idnvd
www.securityfocus.com/bid/48811nvd
exchange.xforce.ibmcloud.com/vulnerabilities/68733nvd

News mentions

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