CVE-2014-4909

6.8 MEDIUM 5% exploit odds Fix listed Code execution

What it is

Integer overflow in the tr_bitfieldEnsureNthBitAlloced function in bitfield.c in Transmission before 2.84 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a crafted peer message, which triggers an out-of-bounds write.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 5.4% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2014-07-29 14:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 00:10 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 5.4% in the next 30 days (EPSS).
Severity: 6.8 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2014-07-29 14:55 UTC
Last modified: 2026-06-17 00:10 UTC
Exploit probability: 5.4% · EPSS, next 30 days
Weakness: CWE-189
Record status: Modified

Affected

Canonical Ubuntu Linux 12.04
Canonical Ubuntu Linux 13.10
Canonical Ubuntu Linux 14.04
Fedoraproject Fedora 20
Gentoo Linux
Transmissionbt Transmission ≤ 2.83
Transmissionbt Transmission 0.1
Transmissionbt Transmission 0.2

Attack profile CVSS 2.0 · 6.8

Attack vector: Network
Complexity: Medium
Authentication: None
Confidentiality: Partial
Integrity: Partial
Availability: Partial

Raw vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2014-4909.md and follow it. Check whether this project is affected by CVE-2014-4909. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record