CVE-2007-2846

CRITICAL 9.3CVE-2007-2846 · Published 24/05/2007 · updated 16/06/2026

In short

CVE-2007-2846 is a CRITICAL (CVSS 9.3) vulnerability affecting avast! antivirus (avas!t), avast! antivirus (avast!).
Chance of exploitation in the next 30 days (EPSS): 7.7%, higher than 94.7% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
avast! antivirus avas!t	`= 4.6.394`	No fix yet
avast! antivirus avast!	`≤ 4.7.652`	No fix yet

Description

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

References

marc.info
osvdb.org/36522
avast.com/eng/adnm-management-client-revision-history.html
kb.cert.org/vuls/id/125868 · US Government Resource
nruns.com/advisories/%5Bn.runs-SA-2007.009%5D%20-%20Avast%21%20Antivirus%20SIS%20parsing%20Arbitrary%20Code%20Execution%20Advisory.txt
securityfocus.com/archive/1/469585/100/0/threaded
securityfocus.com/bid/24155
vupen.com/english/advisories/2007/1935 · Vendor Advisory
exchange.xforce.ibmcloud.com/vulnerabilities/34501

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