How severe is CVE-2007-2845?

CVE-2007-2845 has a CVSS 2.0 base score of 9.3, rated critical severity.

Is CVE-2007-2845 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2007-2845?

CVE-2007-2845 affects Avast Avast Antivirus. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2007-2845?

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

When was CVE-2007-2845 published?

CVE-2007-2845 was published on 2007-05-24 and last updated on 2026-06-16.

CVE-2007-2845

CVE-2007-2845 is a critical-severity vulnerability in Avast Avast Antivirus with a CVSS 2.0 base score of 9.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 9.3)
EPSS exploit prediction: 6% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Avast Avast Antivirus
Published: 2007-05-24
Last modified: 2026-06-16

Description

Heap-based buffer overflow in the CAB unpacker in avast! Anti-Virus Managed Client before 4.7.700 allows user-assisted remote attackers to execute arbitrary code via a crafted CAB archive, resulting from an "integer cast around".

Frequently asked questions

What is CVE-2007-2845?: Heap-based buffer overflow in the CAB unpacker in avast! Anti-Virus Managed Client before 4.7.700 allows user-assisted remote attackers to execute arbitrary code via a crafted CAB archive, resulting from an "integer cast around".
How severe is CVE-2007-2845?: CVE-2007-2845 has a CVSS 2.0 base score of 9.3, rated critical severity.
Is CVE-2007-2845 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2007-2845?: CVE-2007-2845 affects Avast Avast Antivirus. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2007-2845?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2007-2845 published?: CVE-2007-2845 was published on 2007-05-24 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:avast:avast_antivirus:*:*:*:*:*:*:*:*

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