How severe is CVE-2012-6129?

CVE-2012-6129 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2012-6129 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-6129?

CVE-2012-6129 primarily affects Transmissionbt Transmission. In total, 96 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-6129?

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

When was CVE-2012-6129 published?

CVE-2012-6129 was published on 2013-04-03 and last updated on 2026-06-16.

CVE-2012-6129

CVE-2012-6129 is a high-severity vulnerability in Transmissionbt Transmission with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 5% (91st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Transmissionbt Transmission
Published: 2013-04-03
Last modified: 2026-06-16

Description

Stack-based buffer overflow in utp.cpp in libutp, as used in Transmission before 2.74 and possibly other products, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted "micro transport protocol packets."

Frequently asked questions

What is CVE-2012-6129?: Stack-based buffer overflow in utp.cpp in libutp, as used in Transmission before 2.74 and possibly other products, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted "micro transport protocol packets."
How severe is CVE-2012-6129?: CVE-2012-6129 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2012-6129 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-6129?: CVE-2012-6129 primarily affects Transmissionbt Transmission. In total, 96 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-6129?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2012-6129 published?: CVE-2012-6129 was published on 2013-04-03 and last updated on 2026-06-16.

References

Affected products (96)

cpe:2.3:a:transmissionbt:transmission:*:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.1:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.2:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.3:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.4:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.5:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.6:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.6.1:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.70:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.71:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.72:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.80:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.81:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.82:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.90:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.91:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.92:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.93:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.94:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.95:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:0.96:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.00:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.01:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.02:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.2:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.03:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.04:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.05:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.06:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.10:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.11:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.20:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.21:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.22:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.30:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.31:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.32:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.33:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.34:*:*:*:*:*:*:*
cpe:2.3:a:transmissionbt:transmission:1.40:*:*:*:*:*:*:*

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