CVE-2012-1421: The TAR file parser in Quick Heal (aka Cat QuickHeal) 11.00, Norman Antivirus 6.06.12, Rising Antivirus 22.83.

This week

MEDIUM 4.3DOWNGRADEDOWNGRADEDOWNGRADE

CVE-2012-1421 is a medium-severity flaw (CVSS 4.3) affecting quick heal, norman antivirus \& antispyware, rising antivirus. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The TAR file parser in Quick Heal (aka Cat QuickHeal) 11.00, Norman Antivirus 6.06.12, Rising Antivirus 22.83.00.03, and AVEngine 20101.3.0.103 in Symantec Endpoint Protection 11 allows remote attackers to bypass malware detection via a POSIX TAR file with an initial MSCF character sequence. NOTE: this may later be SPLIT into multiple CVEs if additional information is published showing that the error occurred independently in different TAR parse

Why this priority

EPSS top 1%: very likely to be exploited

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

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	89.2% (top 1%)
CISA exploited list	No
Weakness	CWE-264
Published	2012-03-21
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: cat · norman · rising-global · symantec

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

Am I affected?

Timeline

2012-03-21 10:11 UTCPublished CVE record published
2026-06-16 23:39 UTCUpdated Record last modified

cat quick heal DOWNGRADE

Affected: 11.00

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.00

1. Check installed version

apt-cache policy quick-heal || rpm -q quick-heal || quick-heal --version

2. No fixed release: DOWNGRADE to a release before 11.00 (Debian / Ubuntu)

apt-cache madison quick-heal sudo apt install quick-heal=<VERSION_BEFORE_11.00> sudo apt-mark hold quick-heal

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list quick-heal sudo dnf downgrade quick-heal-<VERSION_BEFORE_11.00> sudo dnf versionlock add quick-heal

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.

norman norman antivirus \& antispyware DOWNGRADE

Affected: 6.06.12

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.06.12

1. Check installed version

apt-cache policy norman-antivirus--antispyware || rpm -q norman-antivirus--antispyware || norman-antivirus--antispyware --version

2. No fixed release: DOWNGRADE to a release before 6.06.12 (Debian / Ubuntu)

apt-cache madison norman-antivirus--antispyware sudo apt install norman-antivirus--antispyware=<VERSION_BEFORE_6.06.12> sudo apt-mark hold norman-antivirus--antispyware

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list norman-antivirus--antispyware sudo dnf downgrade norman-antivirus--antispyware-<VERSION_BEFORE_6.06.12> sudo dnf versionlock add norman-antivirus--antispyware

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.

rising-global rising antivirus DOWNGRADE

Affected: 22.83.00.03

Fixed in: no fixed release known

Safe to downgrade to: a release before 22.83.00.03

1. Check installed version

apt-cache policy rising-antivirus || rpm -q rising-antivirus || rising-antivirus --version

2. No fixed release: DOWNGRADE to a release before 22.83.00.03 (Debian / Ubuntu)

apt-cache madison rising-antivirus sudo apt install rising-antivirus=<VERSION_BEFORE_22.83.00.03> sudo apt-mark hold rising-antivirus

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list rising-antivirus sudo dnf downgrade rising-antivirus-<VERSION_BEFORE_22.83.00.03> sudo dnf versionlock add rising-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.

symantec endpoint protection DOWNGRADE

Affected: 11.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 11.0

1. Check installed version

apt-cache policy endpoint-protection || rpm -q endpoint-protection || endpoint-protection --version

2. No fixed release: DOWNGRADE to a release before 11.0 (Debian / Ubuntu)

apt-cache madison endpoint-protection sudo apt install endpoint-protection=<VERSION_BEFORE_11.0> sudo apt-mark hold endpoint-protection

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list endpoint-protection sudo dnf downgrade endpoint-protection-<VERSION_BEFORE_11.0> sudo dnf versionlock add endpoint-protection

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-2012-1421?

quick heal: downgrade or apply the listed mitigation; norman antivirus \& antispyware: downgrade or apply the listed mitigation; rising antivirus: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2012-1421 being exploited?

CVE-2012-1421 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-2012-1421 affect?

CVE-2012-1421 affects quick heal, norman antivirus \& antispyware, rising antivirus. Severity is medium (CVSS 4.3). The TAR file parser in Quick Heal (aka Cat QuickHeal) 11.00, Norman Antivirus 6.06.12, Rising Antivirus 22.83.00.03, and AVEngine 20101.3.0.103 in Symantec Endpoint Protection 11 allows remote attackers to bypass malware detection via a POS

How urgent is CVE-2012-1421?

Priority 40/100. EPSS top 1%: very likely to be exploited

Software pages

Symantec and Broadcom vulnerabilities

Related CVEs

CVE-2012-1463 MEDIUM 4.3 DOWNGRADE DOWNGRADE The ELF file parser in AhnLab V3 Internet Security 2011.01.18.00, Bitdefender 7.2, Quick Heal (aka Cat QuickHe
CVE-2012-1462 MEDIUM 4.3 DOWNGRADE DOWNGRADE The ZIP file parser in AhnLab V3 Internet Security 2011.01.18.00, AVG Anti-Virus 10.0.0.1190, Quick Heal (aka
CVE-2012-1460 MEDIUM 4.3 DOWNGRADE DOWNGRADE The Gzip file parser in Antiy Labs AVL SDK 2.0.3.7, Quick Heal (aka Cat QuickHeal) 11.00, Command Antivirus 5.
CVE-2012-1456 MEDIUM 4.3 DOWNGRADE DOWNGRADE The TAR file parser in AVG Anti-Virus 10.0.0.1190, Quick Heal (aka Cat QuickHeal) 11.00, Comodo Antivirus 7424
CVE-2012-1452 MEDIUM 4.3 DOWNGRADE DOWNGRADE The CAB file parser in Emsisoft Anti-Malware 5.1.0.1, Ikarus Virus Utilities T3 Command Line Scanner 1.1.97.0,

References

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