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Known exploited vulnerability

CVE-2004-1464

mediumCVSS 3.1 5.9In CISA KEVEPSS 4.8%Published · n/a

The short answer

CVE-2004-1464 affects n/a n/a and is rated medium (CVSS 5.9). CISA added it to the Known Exploited Vulnerabilities catalog on 2023-05-19: attackers are using it, so patch it first.

What it is

Cisco IOS 12.2(15) and earlier allows remote attackers to cause a denial of service (refused VTY (virtual terminal) connections), via a crafted TCP connection to the Telnet or reverse Telnet port.

Weakness: CWE-400.

Severity

5.9 medium

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploited (CISA KEV)

Yes, since May 19, 2023

Federal due date Jun 9, 2023

EPSS, next 30 days

4.8%

Higher than 92% of scored CVEs

How it can be exploited

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

What CISA says to do

Apply updates per vendor instructions.

Affected products

n/a. NVD's record lists the exact affected versions.

References

Questions

Is CVE-2004-1464 being exploited?

Yes. CISA added CVE-2004-1464 to its Known Exploited Vulnerabilities catalog on 2023-05-19, with a federal remediation due date of 2023-06-09.

How do I fix CVE-2004-1464?

CISA's required action: Apply updates per vendor instructions.

From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.

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