CVE-2010-2152: Unspecified vulnerability in JustSystems Ichitaro 2004 through 2009, Ichitaro Government 2006 through 2009, an

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HIGH 9.3DOWNGRADEDOWNGRADE

CVE-2010-2152 is a high-severity flaw (CVSS 9.3) affecting ichitaro, just school. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unspecified vulnerability in JustSystems Ichitaro 2004 through 2009, Ichitaro Government 2006 through 2009, and Just School 2008 and 2009 allows remote attackers to execute arbitrary code via unknown vectors related to "product character attribute processing" for a document.

Why this priority

Critical severity
EPSS top 7%: very likely to be exploited

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

Risk facts

CVSS score	9.3 (High)
EPSS exploit chance	5.6% (top 7%)
CISA exploited list	No
Published	2010-06-03
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: justsystems

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

Am I affected?

Timeline

2010-06-03 16:30 UTCPublished CVE record published
2026-06-16 23:20 UTCUpdated Record last modified

justsystems ichitaro DOWNGRADE

Affected: 2004 · 2005 · 2006 · 2007 · 2008 · 2009

Fixed in: no fixed release known

Safe to downgrade to: a release before 2004

1. Check installed version

apt-cache policy ichitaro || rpm -q ichitaro || ichitaro --version

2. No fixed release: DOWNGRADE to a release before 2004 (Debian / Ubuntu)

apt-cache madison ichitaro sudo apt install ichitaro=<VERSION_BEFORE_2004> sudo apt-mark hold ichitaro

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

dnf --showduplicates list ichitaro sudo dnf downgrade ichitaro-<VERSION_BEFORE_2004> sudo dnf versionlock add ichitaro

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.

justsystems just school DOWNGRADE

Affected: 2008 · 2009

Fixed in: no fixed release known

Safe to downgrade to: a release before 2008

1. Check installed version

apt-cache policy just-school || rpm -q just-school || just-school --version

2. No fixed release: DOWNGRADE to a release before 2008 (Debian / Ubuntu)

apt-cache madison just-school sudo apt install just-school=<VERSION_BEFORE_2008> sudo apt-mark hold just-school

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

dnf --showduplicates list just-school sudo dnf downgrade just-school-<VERSION_BEFORE_2008> sudo dnf versionlock add just-school

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-2010-2152?

ichitaro: downgrade or apply the listed mitigation; just school: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2010-2152 being exploited?

CVE-2010-2152 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-2010-2152 affect?

CVE-2010-2152 affects ichitaro, just school. Severity is high (CVSS 9.3). Unspecified vulnerability in JustSystems Ichitaro 2004 through 2009, Ichitaro Government 2006 through 2009, and Just School 2008 and 2009 allows remote attackers to execute arbitrary code via unknown vectors related to "product character at

How urgent is CVE-2010-2152?

Priority 56/100. Critical severity; EPSS top 7%: very likely to be exploited

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References

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