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CVE-2011-2578: Memory leak in Cisco IOS 15.1 and 15.2 allows remote attackers to cause a denial of service (memory consump...

Memory leak in Cisco IOS 15.1 and 15.2 allows remote attackers to cause a denial of service (memory consumption) via malformed SIP packets on a NAT interface, aka Bug ID CSCts12366.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

CVE-2011-2578 is a Cisco IOS denial-of-service issue. Malformed SIP traffic hitting a NAT interface can trigger a memory leak on Cisco IOS 15.1 and 15.2, potentially exhausting device memory and disrupting routing or voice-related connectivity. Exposure is most likely where Cisco IOS 15.1 or 15.2 devices process SIP traffic through NAT interfaces. The bundle does not identify exact hardware platforms, feature sets, or fixed versions. Treat this as a legacy infrastructure availability risk. It is most urgent for organizations still running Cisco IOS 15.1 or 15.2 on NAT devices handling SIP traffic, because outages could affect network or voice availability. Mitigation focus: Inventory Cisco IOS 15.1 and 15.2 devices using NAT and SIP-related traffic paths.; Review Cisco guidance and bug CSCts12366 for fixed releases or supported workarounds.; Prioritize vendor-supported IOS upgrades where Cisco identifies affected software..

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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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Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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2Source links

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Affected products

Products and packages named in the record

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