CVE-2008-7314Network attack vector

Client crash via oversized server-sent nickname

Published Jan 23, 2020 · Updated Aug 7, 2024

Denial of service in mIRC before 6.35 allows remote attackers to crash the client via a long nickname sent by an IRC server. mIRC Company Limited has not disclosed which nickname-processing routine mishandles the oversized value or the underlying operation. A target must connect to a server that supplies a nickname hundreds of characters long; successful exploitation terminates the client session.

CVSS severity7.5
High
EPSS probability1.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in mIRC before 6.35 allows remote attackers to crash the client via a long nickname sent by an IRC server. mIRC Company Limited has not disclosed which nickname-processing routine mishandles the oversized value or the underlying operation. A target must connect to a server that supplies a nickname hundreds of characters long; successful exploitation terminates the client session.

The record

CVE
CVE-2008-7314
Published
Jan 23, 2020
Updated
Aug 7, 2024
Vendor
mIRC Company Limited
Product
mIRC
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 23, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 7, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=before 6.35

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

mIRC Company Limited · mIRCversion=before 6.35

Published CVSS scores

5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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