CVE-2014-8509

Exp

The lazy_bdecode function in BitTorrent bootstrap-dht (aka Bootstrap) allows remote attackers to execute arbitrary code via a crafted packet, which triggers an out-of-bounds read, related to "Improper Indexing."

Published: 2014-10-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-8509 is rated High Exploit Risk (73.6/100): CVSS High severity, with high exploitation likelihood (EPSS 5.12%, 91th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2014-8509

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2014-8509

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 8.46% 5.12% -3.33%
2 2025-03-30 12.72% 8.46% -4.26%
3 2025-03-29 — 12.72% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-8509

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2014-8509

Affected software / configurations for CVE-2014-8509

Vendor Product Version Raw CPE
bittorrent bootstrap-dht — cpe:2.3:a:bittorrent:bootstrap-dht:-:*:*:*:*:*:*:*

References for CVE-2014-8509

cvelogic Threat Intelligence