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CVE-2023-35855

A buffer overflow in Counter-Strike through 8684 allows a game server to execute arbitrary code...

9.8 Critical

A buffer overflow in Counter-Strike through 8684 allows a game server to execute arbitrary code on a remote client's machine by modifying the lservercfgfile console variable.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

1.07%Up 1.0 points since Jun 19, 2023
90%50%10%1%

What each source reports

NVD Score used 9.8

A buffer overflow in Counter-Strike through 8684 allows a game server to execute arbitrary code on a remote client's machine by modifying the lservercfgfile console variable.

Record
CVE-2023-35855
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-120
Updated
2026-11-02
CVE List No score

A buffer overflow in Counter-Strike through 8684 allows a game server to execute arbitrary code on a remote client's machine by modifying the lservercfgfile console variable.

Record
CVE-2023-35855
Updated
2026-11-02
EUVDEUVD-2023-39848 No score

A buffer overflow in Counter-Strike through 8684 allows a game server to execute arbitrary code on a remote client's machine by modifying the lservercfgfile console variable.

Record
EUVD-2023-39848
Updated
2026-11-03
GitHub AdvisoriesGHSA-4426-3833-j328 9.8

A buffer overflow in Counter-Strike through 8684 allows a game server to execute arbitrary code...

A buffer overflow in Counter-Strike through 8684 allows a game server to execute arbitrary code on a remote client's machine by modifying the lservercfgfile console variable.

Record
GHSA-4426-3833-j328
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-120
Updated
2026-11-02

Affected products

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD

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

In short

CVE-2023-35855 is a critical vulnerability (CVSS 9.8) in Valvesoftware Counter-strike, published June 19, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.07%, the 64th percentile. No source names a fixed version.

References

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