CVE-2011-3298

What it is

Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services module in Cisco Catalyst 6500 series devices, with software 7.0 before 7.0(8.13), 7.1 and 7.2 before 7.2(5.3), 8.0 before 8.0(5.24), 8.1 before 8.1(2.50), 8.2 before 8.2(5), 8.3 before 8.3(2.18), 8.4 before 8.4(1.10), and 8.5 before 8.5(1.1) and Cisco Firewall Services Module (aka FWSM) 3.1 before 3.1(21), 3.2 before 3.2(22), 4.0 before 4.0(16), and 4.1 before 4.1(7) allow remote attackers to bypass authentication via a crafted TACACS+ reply, aka Bug IDs CSCto40365 and CSCto74274.

At a glance

Exploitability

Can be exploited from the same network segment without logging in. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.9% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2011-10-06 10:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-16 23:33 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.9% in the next 30 days (EPSS).
• Severity: 7.9 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2011-10-06 10:55 UTC

Last modified

2026-06-16 23:33 UTC

Exploit probability

0.9% · EPSS, next 30 days

Weakness

CWE-287 · Improper authentication

Record status

Modified

Affected

• Cisco Adaptive Security Appliance Software 7.0
• Cisco Adaptive Security Appliance Software 7.0\(0\)
• Cisco Adaptive Security Appliance Software 7.0\(1\)
• Cisco Adaptive Security Appliance Software 7.0\(2\)
• Cisco Adaptive Security Appliance Software 7.0\(4\)
• Cisco Adaptive Security Appliance Software 7.0\(5\)
• Cisco Adaptive Security Appliance Software 7.0\(5.2\)
• Cisco Adaptive Security Appliance Software 7.0\(6\)

Attack profile CVSS 2.0 · 7.9

Attack vector

Adjacent network

Complexity

Medium

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2011-3298.md and follow it. Check whether this project is affected by CVE-2011-3298. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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