CVE-2011-4661General(cisco / ios)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A memory leak vulnerability exists in Cisco IOS before 15.2(1)T due to a memory leak in the HTTP PROXY Server process (aka CSCtu52820), when configured with Cisco ISR Web Security with Cisco ScanSafe and User Authenticaiton NTLM configured.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-772

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • ios

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
Products
ios

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-02-17: 1Technical Details · 2026-02-17: 102-17
Signal classification1 categories
General
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • 0day Signal@0dayPublishing
    General

    🔍 CVE-2011-4661: Cisco (CVSS: 0.0)... Memory leak in HTTP PROXY Server process on legacy Cisco ISR hardware can lead to DoS via resource exhaustion—particular... https://zerodaysignal.com/vulnerability/CVE-2011-4661 #netsec #vulnerability #CVE #sysadmin #zeroday

    Post summary

    The tweet highlights a memory‑leak based DoS vulnerability in Cisco ISR HTTP Proxy Server, but provides no PoC, exploit code, active exploitation evidence, or patch information.

    0000058
    131 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
OSciscoios---

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