How severe is CVE-2009-1824?

CVE-2009-1824 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2009-1824 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-1824?

CVE-2009-1824 primarily affects Arcabit Arcavir 2009 Antivirus Protection. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-1824?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2009-1824 published?

CVE-2009-1824 was published on 2009-05-29 and last updated on 2026-06-16.

CVE-2009-1824

CVE-2009-1824 is a high-severity vulnerability in Arcabit Arcavir 2009 Antivirus Protection with a CVSS 2.0 base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Arcabit Arcavir 2009 Antivirus Protection
Published: 2009-05-29
Last modified: 2026-06-16

Description

The ps_drv.sys kernel driver in ArcaBit ArcaVir 2009 Antivirus Protection 9.4.3201.9 and earlier, ArcaVir 2009 Internet Security 9.4.3202.9 and earlier, ArcaVir 2009 System Protection 9.4.3203.9 and earlier, and ArcaBit 2009 Home Protection 9.4.3204.9 and earlier, allows local users to gain privileges via crafted METHOD_NEITHER IOCTL requests to \Device\ps_drv containing arbitrary kernel addresses, as demonstrated using the (1) 0x2A7B802B and possibly (2) 0x2A7B8004 and (3) 0x2A7B802F IOCTLs.

Frequently asked questions

What is CVE-2009-1824?: The ps_drv.sys kernel driver in ArcaBit ArcaVir 2009 Antivirus Protection 9.4.3201.9 and earlier, ArcaVir 2009 Internet Security 9.4.3202.9 and earlier, ArcaVir 2009 System Protection 9.4.3203.9 and earlier, and ArcaBit 2009 Home Protection 9.4.3204.9 and earlier, allows local users to gain privileges via crafted METHOD_NEITHER IOCTL requests to \Device\ps_drv containing arbitrary kernel addresses, as demonstrated using the (1) 0x2A7B802B and possibly (2) 0x2A7B8004 and (3) 0x2A7B802F IOCTLs.
How severe is CVE-2009-1824?: CVE-2009-1824 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2009-1824 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2009-1824?: CVE-2009-1824 primarily affects Arcabit Arcavir 2009 Antivirus Protection. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2009-1824?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2009-1824 published?: CVE-2009-1824 was published on 2009-05-29 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:arcabit:arcavir_2009_antivirus_protection:*:*:*:*:*:*:*:*
cpe:2.3:a:arcabit:arcavir_2009_home_protection:*:*:*:*:*:*:*:*
cpe:2.3:a:arcabit:arcavir_2009_internet_security:*:*:*:*:*:*:*:*
cpe:2.3:a:arcabit:arcavir_2009_system_protection:*:*:*:*:*:*:*:*

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