Is CVE-2012-6303 in the CISA KEV catalog?

No. CVE-2012-6303 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-6303?

CVE-2012-6303 has a CVSS v2 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2012-6303?

CVE-2012-6303 has an EPSS score of 10.24% (95th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2012-6303

MEDIUMEPSS 95th pctl

6.8

CVSS v2

NVD

Description

Heap-based buffer overflow in the GetWavHeader function in generic/jkSoundFile.c in the Snack Sound Toolkit, as used in WaveSurfer 1.8.8p4, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a large chunk size in a WAV file.

CWE-119Buffer Overflow

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

10.24%probability of exploitation in 30 days

95thpercentile

Very high risk: more likely to be exploited than 95% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.