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CVE-2008-5409: Unspecified vulnerability in the pdf.xmd module in (1) BitDefender Free Edition 10 and Antivirus Standard 10,

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This week
HIGH 9.3DOWNGRADEDOWNGRADEDOWNGRADE

CVE-2008-5409 is a high-severity flaw (CVSS 9.3) affecting antivirus, bitdefender, internet security. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unspecified vulnerability in the pdf.xmd module in (1) BitDefender Free Edition 10 and Antivirus Standard 10, (2) BullGuard Internet Security 8.5, and (3) Software602 Groupware Server 6.0.08.1118 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted PDF file, possibly related to included compressed streams that were processed with the ASCIIHexDecode filter. NOTE: some of these d

Why this priority

  • Critical severity
  • EPSS top 4%: very likely to be exploited
  • Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score9.3 (High)
EPSS exploit chance11.1% (top 4%)
CISA exploited listNo
WeaknessCWE-119
Published2008-12-10
Last modified2026-06-16
Publisher (CNA): MITRE · Vendor: bitdefender · bullguard · software602

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

Am I affected?

Timeline

bitdefender antivirus DOWNGRADE
Affected: 10 _nil_
Fixed in: no fixed release known
Safe to downgrade to: a release before 10
1. Check installed version
apt-cache policy antivirus || rpm -q antivirus || antivirus --version
2. No fixed release: DOWNGRADE to a release before 10 (Debian / Ubuntu)
apt-cache madison antivirus sudo apt install antivirus=<VERSION_BEFORE_10> sudo apt-mark hold antivirus
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list antivirus sudo dnf downgrade antivirus-<VERSION_BEFORE_10> sudo dnf versionlock add antivirus
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
bitdefender bitdefender DOWNGRADE
Affected: 10 _nil_
Fixed in: no fixed release known
Safe to downgrade to: a release before 10
1. Check installed version
apt-cache policy bitdefender || rpm -q bitdefender || bitdefender --version
2. No fixed release: DOWNGRADE to a release before 10 (Debian / Ubuntu)
apt-cache madison bitdefender sudo apt install bitdefender=<VERSION_BEFORE_10> sudo apt-mark hold bitdefender
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list bitdefender sudo dnf downgrade bitdefender-<VERSION_BEFORE_10> sudo dnf versionlock add bitdefender
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
bullguard internet security DOWNGRADE
Affected: 8.5
Fixed in: no fixed release known
Safe to downgrade to: a release before 8.5
1. Check installed version
apt-cache policy internet-security || rpm -q internet-security || internet-security --version
2. No fixed release: DOWNGRADE to a release before 8.5 (Debian / Ubuntu)
apt-cache madison internet-security sudo apt install internet-security=<VERSION_BEFORE_8.5> sudo apt-mark hold internet-security
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list internet-security sudo dnf downgrade internet-security-<VERSION_BEFORE_8.5> sudo dnf versionlock add internet-security
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
software602 groupware server DOWNGRADE
Affected: 6.0.08.1118
Fixed in: no fixed release known
Safe to downgrade to: a release before 6.0.08.1118
1. Check installed version
apt-cache policy groupware-server || rpm -q groupware-server || groupware-server --version
2. No fixed release: DOWNGRADE to a release before 6.0.08.1118 (Debian / Ubuntu)
apt-cache madison groupware-server sudo apt install groupware-server=<VERSION_BEFORE_6.0.08.1118> sudo apt-mark hold groupware-server
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list groupware-server sudo dnf downgrade groupware-server-<VERSION_BEFORE_6.0.08.1118> sudo dnf versionlock add groupware-server
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

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

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-2008-5409?

antivirus: downgrade or apply the listed mitigation; bitdefender: downgrade or apply the listed mitigation; internet security: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2008-5409 being exploited?

CVE-2008-5409 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-2008-5409 affect?

CVE-2008-5409 affects antivirus, bitdefender, internet security. Severity is high (CVSS 9.3). Unspecified vulnerability in the pdf.xmd module in (1) BitDefender Free Edition 10 and Antivirus Standard 10, (2) BullGuard Internet Security 8.5, and (3) Software602 Groupware Server 6.0.08.1118 allows remote attackers to cause a denial of

How urgent is CVE-2008-5409?

Priority 62/100. Critical severity; EPSS top 4%: very likely to be exploited; Public exploit reference

Related CVEs

References

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