Avast Antivirus vulnerabilitiesRanked by how likely they are to be used.
Avast Antivirus is made by Avast. We track 6 published vulnerabilities listed under that exact name, across 7 versions. None of them is on the list of flaws known to be exploited today. Avast lists newer releases under their own names, such as Avast Antivirus Home, so check those pages too.
We keep watching the known-exploited list.
Is Avast Antivirus listed under other names? Yes.
Avast also lists Avast Antivirus under more specific names, such as Avast Antivirus Home and Avast Antivirus Professional. Flaws listed only under those names are counted on their own pages, not here. If you run one of these, open its page for its own exploited flaws.
Which Avast Antivirus vulnerabilities are being exploited?
This is the list that matters most: flaws criminals are using now.
None of Avast Antivirus's published vulnerabilities is on the list of flaws known to be exploited today. We keep watching that list.
Which Avast Antivirus flaws are most likely to be used?
Ranked by the latest exploit-likelihood forecast: the chance each flaw is used in an attack in the next 30 days. A high severity score on its own doesn't tell you that. Flaws shared by many other makers' products are left out.
- 6.3%CVE-2007-2845Critical
Heap-based buffer overflow in the CAB unpacker in avast!
- 3.7%CVE-2008-6846Medium
Multiple stack-based buffer overflows in avast!
- 3.2%CVE-2007-1672High
avast! antivirus before 4.7.981 allows remote attackers to cause a denial of service (infinite loop) via a ZOO archive with a direntry structure that points to a previous file.
- 3.2%CVE-2007-1673High
unzoo.c, as used in multiple products including AMaViS 2.4.1 and earlier, allows remote attackers to cause a denial of service (infinite loop) via a ZOO archive with a direntry structure that points to a previous file.
- 3.0%CVE-2015-5662Medium
Directory traversal vulnerability in Avast before 150918-0 allows remote attackers to delete or write to arbitrary files via a crafted entry in a ZIP archive.
- 2.9%CVE-2008-5523Critical
avast! antivirus 4.8.1281.0, when Internet Explorer 6 or 7 is used, allows remote attackers to bypass detection of malware in an HTML document by placing an MZ header (aka "EXE info") at the beginning, and modifying...
Running Avast Antivirus? We'll keep checking.
Looking flaws up one at a time doesn't scale. Tell us what you run once, and we tell you which flaws matter to you, in what order, and keep watching for new ones.
- Tell us what you runPick your software from a list, or let us work it out from your website.
- We match it to every flawOver 400,000 published flaws, checked against your list.
- Ranked by real-world riskA 0 to 100 score, led by evidence criminals are using it.
- Told as soon as we knowAn alert by email, in the app or by webhook to your own tools.
Free plan, no card needed. Nothing to install.
1 new flaw affects software Acme tracks
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".
- Matched to
- Avast Antivirus on Acme's software list
- What to do
- Plan in the vendor’s update
Sent to the alert recipients Acme chose. Also in the app and to Acme's webhook.
We track 6 published vulnerabilities listed under the name Avast Antivirus, across 7 versions.
None of Avast Antivirus's vulnerabilities is on the list of flaws known to be exploited today.
Avast also lists Avast Antivirus under more specific names, such as Avast Antivirus Home and Avast Antivirus Professional. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.
Create a Precursor Intelligence account and track Avast Antivirus. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.