CVE-2009-2761: Unquoted Windows search path vulnerability in the scheduler (sched.exe) in Avira AntiVir, AntiVir Premium, Pre

Routine

HIGH 7.2MITIGATEMITIGATE

CVE-2009-2761 is a high-severity flaw (CVSS 7.2) affecting antivir, antivir security suite. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unquoted Windows search path vulnerability in the scheduler (sched.exe) in Avira AntiVir, AntiVir Premium, Premium Security Suite, and AntiVir Professional might allow local users to gain privileges via a malicious antivir.exe file in the "C:\Program Files\avira\" directory.

Why this priority

High severity

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

Risk facts

CVSS score	7.2 (High)
EPSS exploit chance	0.4% (top 71%)
CISA exploited list	No
Published	2009-08-13
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: avira

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

Am I affected?

Timeline

2009-08-13 16:30 UTCPublished CVE record published
2026-06-16 23:10 UTCUpdated Record last modified

avira antivir MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

avira antivir security suite MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy antivir-security-suite || rpm -q antivir-security-suite || antivir-security-suite --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2009-2761?

antivir: mitigate or apply the listed mitigation; antivir security suite: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2009-2761 being exploited?

CVE-2009-2761 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-2009-2761 affect?

CVE-2009-2761 affects antivir, antivir security suite. Severity is high (CVSS 7.2). Unquoted Windows search path vulnerability in the scheduler (sched.exe) in Avira AntiVir, AntiVir Premium, Premium Security Suite, and AntiVir Professional might allow local users to gain privileges via a malicious antivir.exe file in the "

How urgent is CVE-2009-2761?

Priority 32/100. High severity

Software pages

Windows vulnerabilities

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References

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