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CVE-2025-9809

Out-of-bounds write in cdfs_open_cue_track in libretro libretro-common latest on all platforms...

8.4 HighFix available

Out-of-bounds write in cdfs_open_cue_track in libretro libretro-common latest on all platforms allows remote attackers to execute arbitrary code via a crafted .cue file with a file path exceeding PATH_MAX_LENGTH that is copied using memcpy into a fixed-size buffer.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Active

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.42%Up 0.4 points since Sep 2, 2025
90%50%10%1%

What each source reports

CVE List Score used 8.4

Out-of-bounds write in cdfs_open_cue_track in libretro libretro-common latest on all platforms allows remote attackers to execute arbitrary code via a crafted .cue file with a file path exceeding PATH_MAX_LENGTH that is copied using memcpy into a fixed-size buffer.

Record
CVE-2025-9809
CVSS 4.0
8.4 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-787
Updated
2026-11-02
EUVDEUVD-2025-26355 8.4

Out-of-bounds write in cdfs_open_cue_track in libretro libretro-common latest on all platforms allows remote attackers to execute arbitrary code via a crafted .cue file with a file path exceeding PATH_MAX_LENGTH that is copied using memcpy into a fixed-size buffer.

Record
EUVD-2025-26355
CVSS 4.0
8.4 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-2cg7-x3pg-q7xf 8.4

Out-of-bounds write in cdfs_open_cue_track in libretro libretro-common latest on all platforms...

Out-of-bounds write in cdfs_open_cue_track in libretro libretro-common latest on all platforms allows remote attackers to execute arbitrary code via a crafted .cue file with a file path exceeding PATH_MAX_LENGTH that is copied using memcpy into a fixed-size buffer.

Record
GHSA-2cg7-x3pg-q7xf
CVSS 4.0
8.4 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02
NVD 8.4

Out-of-bounds write in cdfs_open_cue_track in libretro libretro-common latest on all platforms allows remote attackers to execute arbitrary code via a crafted .cue file with a file path exceeding PATH_MAX_LENGTH that is copied using memcpy into a fixed-size buffer.

Record
CVE-2025-9809
CVSS 4.0
8.4 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02
OSV 8.4

Out-of-bounds write in cdfs_open_cue_track in libretro libretro-common latest on all platforms allows remote attackers to execute arbitrary code via a crafted .cue file with a file path exceeding PATH_MAX_LENGTH that is copied using memcpy into a fixed-size buffer.

Record
CVE-2025-9809
CVSS 4.0
8.4 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness
CWE-787
Updated
2026-11-02
OSVDEBIAN-CVE-2025-9809 9.8

Out-of-bounds write in cdfs_open_cue_track in libretro libretro-common latest on all platforms allows remote attackers to execute arbitrary code via a crafted .cue file with a file path exceeding PATH_MAX_LENGTH that is copied using memcpy into a fixed-size buffer.

Record
DEBIAN-CVE-2025-9809
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2025-9809 8.4

Out-of-bounds write in cdfs_open_cue_track in libretro libretro-common latest on all platforms allows remote attackers to execute arbitrary code via a crafted .cue file with a file path exceeding PATH_MAX_LENGTH that is copied using memcpy into a fixed-size buffer.

Record
UBUNTU-CVE-2025-9809
CVSS 4.0
8.4 HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUSN-8166-1 No score

retroarch vulnerability

It was discovered that RetroArch did not correctly handle certain memory operations, which could lead to a buffer overflow. If a user or automated system were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 24.04 LTS and Ubuntu 25.10.

Record
USN-8166-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
retroarch
Debian:12
 All versions, plus listed versions
1.14.0+dfsg-11.15.0+dfsg-11.16.0.3+dfsg-11.18.0+dfsg-11.19.1+dfsg-1
Show 5 moreShow less
1.20.0+dfsg-11.20.0+dfsg-21.20.0+dfsg-31.22.2+dfsg-11.22.2+dfsg-2
 None known
retroarch
Debian:13
 All versions, plus listed versions
1.20.0+dfsg-21.20.0+dfsg-31.22.2+dfsg-11.22.2+dfsg-2
 None known
retroarch
Debian:14
 All versions, plus listed versions
1.20.0+dfsg-21.20.0+dfsg-31.22.2+dfsg-11.22.2+dfsg-2
 None known
retroarch
Ubuntu:Pro:24.04:LTS
 before 1.18.0+dfsg-1ubuntu0.1~esm1, plus listed versions
1.14.0+dfsg-1build11.15.0+dfsg-11.16.0.3+dfsg-11.18.0+dfsg-1
1.18.0+dfsg-1ubuntu0.1~esm1
retroarch
Ubuntu:25.10
 before 1.20.0+dfsg-3ubuntu0.1, plus listed versions
1.20.0+dfsg-2build11.20.0+dfsg-2build21.20.0+dfsg-3
1.20.0+dfsg-3ubuntu0.1

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-9809 is a high vulnerability (CVSS 8.4) in Libretro Libretro-common, published September 1, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.42%, the 36th percentile. Fixed in retroarch 1.18.0+dfsg-1ubuntu0.1~esm1.

References

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