CVE-2008-6703: Stack-based buffer overflow in the IPureServer::_Recieve function in S.T.A.L.K.E.R.: Shadow of Chernobyl 1.000

Q: How do I fix CVE-2008-6703?

s.t.a.l.k.e.r.\: upgrade to newer than 1.0006. Exact commands for each OS are on this page.

Q: Is CVE-2008-6703 being exploited?

CVE-2008-6703 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2008-6703 affect?

CVE-2008-6703 affects s.t.a.l.k.e.r.\. Severity is high (CVSS 10.0). Stack-based buffer overflow in the IPureServer::_Recieve function in S.T.A.L.K.E.R.: Shadow of Chernobyl 1.0006 and earlier allows remote attackers to execute arbitrary code via a compressed 0x39 packet, which is decompressed by the NET_Com

Q: How urgent is CVE-2008-6703?

Priority 64/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference

This week

HIGH 10.0UPGRADE

CVE-2008-6703 is a high-severity flaw (CVSS 10.0) affecting s.t.a.l.k.e.r.\. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Stack-based buffer overflow in the IPureServer::_Recieve function in S.T.A.L.K.E.R.: Shadow of Chernobyl 1.0006 and earlier allows remote attackers to execute arbitrary code via a compressed 0x39 packet, which is decompressed by the NET_Compressor::Decompress function.

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	8.3% (top 5%)
CISA exploited list	No
Weakness	CWE-119
Published	2009-04-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: stalker-game

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2009-04-10 22:00 UTCPublished CVE record published
2026-06-16 23:02 UTCUpdated Record last modified

stalker-game s.t.a.l.k.e.r.\ UPGRADE

Affected: <= 1.0006

Fixed in: newer than 1.0006

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy s.t.a.l.k.e.r. || rpm -q s.t.a.l.k.e.r. || s.t.a.l.k.e.r. --version

2. UPGRADE to newer than 1.0006 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade s.t.a.l.k.e.r.

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade s.t.a.l.k.e.r.

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: S.T.A.L.K.E.R Shadow of Chernobyl 1.0006 - Multiple Remote Vulnerabilities

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2008-6703?

s.t.a.l.k.e.r.\: upgrade to newer than 1.0006. Exact commands for each OS are on this page.

Is CVE-2008-6703 being exploited?

CVE-2008-6703 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2008-6703 affect?

CVE-2008-6703 affects s.t.a.l.k.e.r.\. Severity is high (CVSS 10.0). Stack-based buffer overflow in the IPureServer::_Recieve function in S.T.A.L.K.E.R.: Shadow of Chernobyl 1.0006 and earlier allows remote attackers to execute arbitrary code via a compressed 0x39 packet, which is decompressed by the NET_Com

How urgent is CVE-2008-6703?

Priority 64/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2008-6705 MEDIUM 5.0 UPGRADE The MultipacketReciever::RecievePacket function in S.T.A.L.K.E.R.: Shadow of Chernobyl 1.0006 and earlier allo
CVE-2008-6704 MEDIUM 5.0 UPGRADE Integer overflow in the NET_Compressor::Decompress function in S.T.A.L.K.E.R.: Shadow of Chernobyl 1.0006 and
CVE-2008-6702 MEDIUM 5.0 UPGRADE S.T.A.L.K.E.R.: Shadow of Chernobyl 1.0006 and earlier allows remote attackers to cause a denial of service (c

References

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