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CVE-2026-39199

snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.

2.9 LowFix available

snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
Low

Exploit likelihood

0.12%Unchanged since Jun 18, 2026
90%50%10%1%

What each source reports

CVE List Score used 2.9

snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.

Record
CVE-2026-39199
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-787
Updated
2026-11-02
EUVDEUVD-2026-37833 2.9

snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.

Record
EUVD-2026-37833
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
GitHub AdvisoriesGHSA-4qcp-g757-95hj 2.9

snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.

snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.

Record
GHSA-4qcp-g757-95hj
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-787
Updated
2026-11-02
NVD 2.9

snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.

Record
CVE-2026-39199
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-787
Updated
2026-11-02
OSV 2.9

snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.

Record
CVE-2026-39199
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-787
Updated
2026-11-02
OSVDEBIAN-CVE-2026-39199 2.9

snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.

Record
DEBIAN-CVE-2026-39199
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVUBUNTU-CVE-2026-39199 2.9

snes9x 1.63 allows an out-of-bounds write and denial of service via a crafted .ups file.

Record
UBUNTU-CVE-2026-39199
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
libretro-snes9x
Debian:12
 All versions, plus listed versions
1.53+git20160522-11.53+git20160522-1.11.61+dfsg-11.63+dfsg-11.63+dfsg-2
 None known
libretro-snes9x
Debian:13
 All versions, plus listed versions
1.53+git20160522-11.53+git20160522-1.11.61+dfsg-11.63+dfsg-11.63+dfsg-2
 None known
libretro-snes9x
Debian:14
 before 1.63+dfsg-2, plus listed versions
1.53+git20160522-11.53+git20160522-1.11.61+dfsg-11.63+dfsg-1
1.63+dfsg-2
libretro-snes9x
Ubuntu:18.04:LTS
 All versions, plus listed versions
1.53+git20160522-1
 None known
libretro-snes9x
Ubuntu:20.04:LTS
 All versions, plus listed versions
1.53+git20160522-11.53+git20160522-1build1
 None known
libretro-snes9x
Ubuntu:22.04:LTS
 All versions, plus listed versions
1.53+git20160522-1build1
 None known
libretro-snes9x
Ubuntu:24.04:LTS
 All versions, plus listed versions
1.61+dfsg-1
 None known
libretro-snes9x
Ubuntu:25.10
 All versions, plus listed versions
1.63+dfsg-1
 None known
libretro-snes9x
Ubuntu:26.10
 All versions, plus listed versions
1.63+dfsg-1build11.63+dfsg-2
 None known
libretro-snes9x
Ubuntu:26.04:LTS
 All versions, plus listed versions
1.63+dfsg-11.63+dfsg-1build1
 None known

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-2026-39199 is a low vulnerability (CVSS 2.9) in Snes9x Team Snes9x, published June 17, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.12%, the 2nd percentile. Fixed in libretro-snes9x 1.63+dfsg-2.

References

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