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CVE-2012-1433: The Microsoft EXE file parser in AhnLab V3 Internet Security 2011.01.18.00, Emsisoft Anti-Malware 5.1.0.1, eSa

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MEDIUM 4.3WATCHLISTDOWNGRADEDOWNGRADEDOWNGRADE

CVE-2012-1433 is a medium-severity flaw (CVSS 4.3) affecting v3 internet security, esafe, anti-malware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Microsoft EXE file parser in AhnLab V3 Internet Security 2011.01.18.00, Emsisoft Anti-Malware 5.1.0.1, eSafe 7.0.17.0, Ikarus Virus Utilities T3 Command Line Scanner 1.1.97.0, and Panda Antivirus 10.0.2.7 allows remote attackers to bypass malware detection via an EXE file with a \4a\46\49\46 character sequence at a certain location. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error

Why this priority

  • EPSS top 1%: very likely to be exploited
  • On your watchlist

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

Risk facts

CVSS score4.3 (Medium)
EPSS exploit chance93.6% (top 1%)
CISA exploited listNo
WeaknessCWE-264
Published2012-03-21
Last modified2026-06-16
Publisher (CNA): MITRE · Vendor: ahnlab · aladdin · emsisoft · ikarus · pandasecurity

Share: LinkedIn · X · Reddit

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

Am I affected?

Timeline

ahnlab v3 internet security DOWNGRADE
Affected: 2011.01.18.00
Fixed in: no fixed release known
Safe to downgrade to: a release before 2011.01.18.00
1. Check installed version
apt-cache policy v3-internet-security || rpm -q v3-internet-security || v3-internet-security --version
2. No fixed release: DOWNGRADE to a release before 2011.01.18.00 (Debian / Ubuntu)
apt-cache madison v3-internet-security sudo apt install v3-internet-security=<VERSION_BEFORE_2011.01.18.00> sudo apt-mark hold v3-internet-security
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list v3-internet-security sudo dnf downgrade v3-internet-security-<VERSION_BEFORE_2011.01.18.00> sudo dnf versionlock add v3-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.
aladdin esafe DOWNGRADE
Affected: 7.0.17.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 7.0.17.0
1. Check installed version
apt-cache policy esafe || rpm -q esafe || esafe --version
2. No fixed release: DOWNGRADE to a release before 7.0.17.0 (Debian / Ubuntu)
apt-cache madison esafe sudo apt install esafe=<VERSION_BEFORE_7.0.17.0> sudo apt-mark hold esafe
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list esafe sudo dnf downgrade esafe-<VERSION_BEFORE_7.0.17.0> sudo dnf versionlock add esafe
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.
emsisoft anti-malware DOWNGRADE
Affected: 5.1.0.1
Fixed in: no fixed release known
Safe to downgrade to: a release before 5.1.0.1
1. Check installed version
apt-cache policy anti-malware || rpm -q anti-malware || anti-malware --version
2. No fixed release: DOWNGRADE to a release before 5.1.0.1 (Debian / Ubuntu)
apt-cache madison anti-malware sudo apt install anti-malware=<VERSION_BEFORE_5.1.0.1> sudo apt-mark hold anti-malware
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list anti-malware sudo dnf downgrade anti-malware-<VERSION_BEFORE_5.1.0.1> sudo dnf versionlock add anti-malware
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.
ikarus ikarus virus utilities t3 command line scanner DOWNGRADE
Affected: 1.1.97.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 1.1.97.0
1. Check installed version
apt-cache policy ikarus-virus-utilities-t3-command-line-scanner || rpm -q ikarus-virus-utilities-t3-command-line-scanner || ikarus-virus-utilities-t3-command-line-scanner --version
2. No fixed release: DOWNGRADE to a release before 1.1.97.0 (Debian / Ubuntu)
apt-cache madison ikarus-virus-utilities-t3-command-line-scanner sudo apt install ikarus-virus-utilities-t3-command-line-scanner=<VERSION_BEFORE_1.1.97.0> sudo apt-mark hold ikarus-virus-utilities-t3-command-line-scanner
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list ikarus-virus-utilities-t3-command-line-scanner sudo dnf downgrade ikarus-virus-utilities-t3-command-line-scanner-<VERSION_BEFORE_1.1.97.0> sudo dnf versionlock add ikarus-virus-utilities-t3-command-line-scanner
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.
pandasecurity panda antivirus DOWNGRADE
Affected: 10.0.2.7
Fixed in: no fixed release known
Safe to downgrade to: a release before 10.0.2.7
1. Check installed version
apt-cache policy panda-antivirus || rpm -q panda-antivirus || panda-antivirus --version
2. No fixed release: DOWNGRADE to a release before 10.0.2.7 (Debian / Ubuntu)
apt-cache madison panda-antivirus sudo apt install panda-antivirus=<VERSION_BEFORE_10.0.2.7> sudo apt-mark hold panda-antivirus
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list panda-antivirus sudo dnf downgrade panda-antivirus-<VERSION_BEFORE_10.0.2.7> sudo dnf versionlock add panda-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.
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-2012-1433?

v3 internet security: downgrade or apply the listed mitigation; esafe: downgrade or apply the listed mitigation; anti-malware: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2012-1433 being exploited?

CVE-2012-1433 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-2012-1433 affect?

CVE-2012-1433 affects v3 internet security, esafe, anti-malware. Severity is medium (CVSS 4.3). The Microsoft EXE file parser in AhnLab V3 Internet Security 2011.01.18.00, Emsisoft Anti-Malware 5.1.0.1, eSafe 7.0.17.0, Ikarus Virus Utilities T3 Command Line Scanner 1.1.97.0, and Panda Antivirus 10.0.2.7 allows remote attackers to bypa

How urgent is CVE-2012-1433?

Priority 45/100. EPSS top 1%: very likely to be exploited; On your watchlist

Related CVEs

References

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