CVE-2001-1064

5.0 MEDIUM 5% exploit odds Fix listed Denial of service Network gear

What it is

Cisco 600 series routers running CBOS 2.0.1 through 2.4.2ap allows remote attackers to cause a denial of service via multiple connections to the router on the (1) HTTP or (2) telnet service, which causes the router to become unresponsive and stop forwarding packets.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 5.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2001-08-31 04:00 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 21:55 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 5.4% in the next 30 days (EPSS).
Severity: 5.0 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2001-08-31 04:00 UTC
Last modified: 2026-06-16 21:55 UTC
Exploit probability: 5.4% · EPSS, next 30 days
Record status: Modified

Affected

Cisco Cbos ≤ 2.4.2ap
Cisco Cbos 2.0.1
Cisco Cbos 2.1.0
Cisco Cbos 2.1.0a
Cisco Cbos 2.2.0
Cisco Cbos 2.2.1
Cisco Cbos 2.2.1a
Cisco Cbos 2.3

Attack profile CVSS 2.0 · 5.0

Attack vector: Network
Complexity: Low
Authentication: None
Confidentiality: None
Integrity: None
Availability: Partial

Raw vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2001-1064.md and follow it. Check whether this project is affected by CVE-2001-1064. 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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Fix and advisories

References

NVD record · CVE.org record