What is CVE-2008-4449?

CVE-2008-4449 is a vulnerability in Mirc, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2008-10-06.

Is CVE-2008-4449 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Mirc

CVE-2008-4449

Stack-based buffer overflow in mIRC 6.34 allows remote attackers to execute arbitrary code via a long hostname in a PRIVMSG message.

Vulnerability class: Buffer Overflow

Published 2008-10-06 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 9.3 (High). Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.387 (98.5th percentile), scored 2026-10-02.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.387 · newest: 0.387 · change: 0.000

Affected products

Mirc — versions 6.34

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

Public proof-of-concept exploits

rapid7/metasploit-framework

References

exchange.xforce.ibmcloud.com/vulnerabilities/45624 (vdb-entry)
www.exploit-db.com/exploits/6654 (exploit)
secunia.com/advisories/32102 (Vendor Advisory, third-party-advisory)
www.exploit-db.com/exploits/6666 (exploit)
securityreason.com/securityalert/4352 (third-party-advisory)
www.vupen.com/english/advisories/2008/2736 (vdb-entry)
www.securityfocus.com/bid/31552 (Exploit, vdb-entry)

Frequently asked questions

What is CVE-2008-4449?: CVE-2008-4449 is a vulnerability in Mirc, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. Published 2008-10-06.
Is CVE-2008-4449 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.