9.3

CVE-2007-2846: avast avast_antivirus

CVSS: 9.3v2.0HighModified
Published 24-05-2007Last modified 07-08-2024

Vulnerability summary

CVE-2007-2846 is a high (CVSS 9.3) vulnerability in avast avast_antivirus. EPSS estimates a 7.74% chance of exploitation in the next 30 days, higher than 94.5% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
High · v2.0 (NVD)
EPSS score
7.74%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 24-05-2007
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

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."

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

7.74%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

0.00 pp

From 7.74% on 19-09-2026

19-09-202619-10-2026
EPSS score
7.74%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Avast1 product

1 vendor · 1 product

References

9 links