Is CVE-2010-0520 in the CISA KEV catalog?

No. CVE-2010-0520 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2010-0520?

CVE-2010-0520 has a CVSS v2 base score of 6.8 (MEDIUM).

What is the EPSS score for CVE-2010-0520?

CVE-2010-0520 has an EPSS score of 18.57% (97th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2010-0520

MEDIUMEPSS 97th pctl

6.8

CVSS v2

NVD

Description

Heap-based buffer overflow in QuickTimeAuthoring.qtx in QuickTime in Apple Mac OS X before 10.6.3 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted FLC file, related to crafted DELTA_FLI chunks and untrusted length values in a .fli file, which are not properly handled during decompression.

CWE-119Buffer Overflow

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

18.57%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% 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.