CVE-2008-4434

CVE-2008-4434 is a critical-severity vulnerability in Utorrent with a CVSS 2.0 base score of 9.3. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

• Severity: Critical (CVSS 2.0 base score 9.3)
• EPSS exploit prediction: 11% (95th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Utorrent
• Published: 2008-10-03
• Last modified: 2026-06-16

Description

Stack-based buffer overflow in (1) uTorrent 1.7.7 build 8179 and earlier and (2) BitTorrent 6.0.3 build 8642 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long Created By field in a .torrent file.

Frequently asked questions

What is CVE-2008-4434?

Stack-based buffer overflow in (1) uTorrent 1.7.7 build 8179 and earlier and (2) BitTorrent 6.0.3 build 8642 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long Created By field in a .torrent file.

How severe is CVE-2008-4434?

CVE-2008-4434 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2008-4434 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2008-4434?

CVE-2008-4434 primarily affects Utorrent. In total, 89 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2008-4434?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2008-4434 published?

CVE-2008-4434 was published on 2008-10-03 and last updated on 2026-06-16.

References

• http://forum.utorrent.com/viewtopic.php?id=44003
• http://lists.immunitysec.com/pipermail/dailydave/attachments/20080811/35d6194b/attachment-0001.pdf
• http://seclists.org/dailydave/2008/q3/0155.html
• http://secunia.com/advisories/31441
• http://secunia.com/advisories/31445
• http://www.securityfocus.com/bid/30653
• http://www.securitytracker.com/id?1020664
• http://www.vupen.com/english/advisories/2008/2340
• http://www.vupen.com/english/advisories/2008/2341
• https://exchange.xforce.ibmcloud.com/vulnerabilities/44404

Affected products (89)

• cpe:2.3:a:utorrent:utorrent:*:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.1.5:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.1.6:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.1.7:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.2:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.2.1:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.2.2:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.3:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.4:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.4.2:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.5:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.6:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.7:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.7.2:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.7.3:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.7.4:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.7.5:*:*:*:*:*:*:*
• cpe:2.3:a:utorrent:utorrent:1.7.6:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:*:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:3.9.1:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.0.0:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.0.3:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.0.4:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.1.0:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.1.1:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.1.2:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.1.3:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.1.4:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.1.5:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.1.6:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.1.7:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.1.8:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.2.0:*:*:*:*:*:*:*
• cpe:2.3:a:bittorrent:bittorrent:4.2.1:*:*:*:*:*:*:*

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