CVE-2008-6704: Integer overflow in the NET_Compressor::Decompress function in S.T.A.L.K.E.R.: Shadow of Chernobyl 1.0006 and

Q: How do I fix CVE-2008-6704?

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-2008-6704 being exploited?

CVE-2008-6704 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-2008-6704 affect?

CVE-2008-6704 affects s.t.a.l.k.e.r.\. Severity is medium (CVSS 5.0). Integer overflow in the NET_Compressor::Decompress function in S.T.A.L.K.E.R.: Shadow of Chernobyl 1.0006 and earlier allows remote attackers to cause a denial of service (server crash) via a crafted packet with a 0xc1 value that contains n

Q: How urgent is CVE-2008-6704?

Priority 38/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2008-6704 is a medium-severity flaw (CVSS 5.0) 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.

Integer overflow in the NET_Compressor::Decompress function in S.T.A.L.K.E.R.: Shadow of Chernobyl 1.0006 and earlier allows remote attackers to cause a denial of service (server crash) via a crafted packet with a 0xc1 value that contains no compressed data, which triggers a copy of a large amount of memory.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.0% (top 19%)
CISA exploited list	No
Weakness	CWE-189
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.

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-2008-6704?

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

Is CVE-2008-6704 being exploited?

CVE-2008-6704 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-2008-6704 affect?

CVE-2008-6704 affects s.t.a.l.k.e.r.\. Severity is medium (CVSS 5.0). Integer overflow in the NET_Compressor::Decompress function in S.T.A.L.K.E.R.: Shadow of Chernobyl 1.0006 and earlier allows remote attackers to cause a denial of service (server crash) via a crafted packet with a 0xc1 value that contains n

How urgent is CVE-2008-6704?

Priority 38/100. No elevated risk signals yet.

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-2008-6703 HIGH 10.0 UPGRADE Stack-based buffer overflow in the IPureServer::_Recieve function in S.T.A.L.K.E.R.: Shadow of Chernobyl 1.000
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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