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Vulnerability record · CVE-2007-6277 · published 7 December 2007

CVE-2007-6277: Libflac memory buffer overflow vulnerability

Flac · Libflac

Multiple buffer overflows in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allow user-assisted remote attackers to execute arbitrary code via large (1) Metadata Block Size, (2) VORBIS Comment String Size, (3) Picture Metadata MIME-TYPE Size, (4) Picture Description Size, (5) Picture Data Length, (6) Padding Length, and (7) PICTURE Metadata width and height values in a .FLAC file, which result in a heap-based overflow; and large (8) VORBIS Comment String Size Length, (9) Picture MIME-Type, (10) Picture MIME-Type URL, and (11) Picture Description Length values in a .FLAC file, which result in a stack-based overflow. NOTE: some of these issues may overlap CVE-2007-4619.

9.3 CVSS 2.0 High EPSS 6.7% · top 6.3% CWE-119 · Memory buffer overflow
9.3CVSS 2.0 base score
6.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
16References
16 Jun 2026Last modified by NVD

Description

Multiple buffer overflows in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allow user-assisted remote attackers to execute arbitrary code via large (1) Metadata Block Size, (2) VORBIS Comment String Size, (3) Picture Metadata MIME-TYPE Size, (4) Picture Description Size, (5) Picture Data Length, (6) Padding Length, and (7) PICTURE Metadata width and height values in a .FLAC file, which result in a heap-based overflow; and large (8) VORBIS Comment String Size Length, (9) Picture MIME-Type, (10) Picture MIME-Type URL, and (11) Picture Description Length values in a .FLAC file, which result in a stack-based overflow. NOTE: some of these issues may overlap CVE-2007-4619.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.3CVE-2007-6278Libflac improper input validation vulnerabilityFree Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allows user-assisted remote attackers to force a client to download arbitrary files via the MIM…EPSS 2.1%9.3CVE-2007-6279Libflac vulnerabilityMultiple double free vulnerabilities in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allow user-assisted remote attackers to execute arbitra…EPSS 4.0%9.3CVE-2007-4619Libflac vulnerabilityMultiple integer overflows in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1, as used in Winamp before 5.5 and other products, allow user-assi…EPSS 6.7%7.5CVE-2014-9028Libflac memory buffer overflow vulnerabilityHeap-based buffer overflow in stream_decoder.c in libFLAC before 1.3.1 allows remote attackers to execute arbitrary code via a crafted .flac file.EPSS 9.8%7.5CVE-2014-8962Libflac memory buffer overflow vulnerabilityStack-based buffer overflow in stream_decoder.c in libFLAC before 1.3.1 allows remote attackers to execute arbitrary code via a crafted .flac file.EPSS 9.9%8.8CVE-2026-8452Citrix NetScaler ADC and Gateway memory buffer overflow causes DoSCVE-2026-8452 is a memory buffer overflow (CWE-119) in Citrix NetScaler ADC and NetScaler Gateway that leads to unpredictable or erroneous behavior a…KEVEPSS 1.0%analysed8.8CVE-2009-3459Adobe Reader and Acrobat heap buffer overflow via crafted PDFAdobe Reader and Acrobat 7.x before 7.1.4, 8.x before 8.1.7, and 9.x before 9.2 contain a heap-based buffer overflow (CWE-122) triggered by a crafted…KEVEPSS 87%analysed9.8CVE-2008-4250Microsoft Windows Server service RPC path canonicalization buffer overflowThe Server service in multiple Windows versions fails to properly handle path canonicalization, allowing a crafted RPC request to overflow a buffer a…KEVEPSS 99%analysed

Source: NIST National Vulnerability Database (record CVE-2007-6277), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.