TI-2007-01611 Aliases CVE-2007-1672 GHSA-g4x2-2pr8-cq33

avast! antivirus before 4.7.981 allows remote attackers to cause a denial of service…

MEDIUM 40Published 2007-05-09 · Updated 2024-08-07

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · Complete
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.03178 88th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:avast:avast_antivirus::::::::	up to 4.7.980	Vulnerable	Avast

cpe:2.3:a:avast:avast_antivirus:*:*:*:*:*:*:*:* Versions up to 4.7.980 Vulnerable ·Avast

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2007-1672
2026-10-03 Alias added: GHSA-g4x2-2pr8-cq33

References

Advisory 1

2680

Other 2

TI-2007-02752 Heap-based buffer overflow in the CAB unpacker in avast! Anti-Virus Managed Client before… CVSS 2.0HIGH 9.3
TI-2008-05239 avast! antivirus 4.8.1281.0, when Internet Explorer 6 or 7 is used, allows remote… CVSS 2.0HIGH 9.3
TI-2007-01612 unzoo.c, as used in multiple products including AMaViS 2.4.1 and earlier, allows remote… CVSS 2.0HIGH 7.8
TI-2008-06534 Multiple stack-based buffer overflows in avast! Linux Home Edition 1.0.5, 1.0.5-1, and… CVSS 2.0MEDIUM 6.8
TI-2015-04773 Directory traversal vulnerability in Avast before 150918-0 allows remote attackers to… CVSS 2.0MEDIUM 6.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences