The AVG parsing engine 8.5 323, as used in multiple AVG anti-virus products including…
Priority MEDIUM 49CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The AVG parsing engine 8.5 323, as used in multiple AVG anti-virus products including Anti-Virus Network Edition, Internet Security Netzwerk Edition, Server Edition für Linux/FreeBSD, Anti-Virus SBS Edition, and others allows remote attackers to bypass malware detection via a crafted (1) RAR and (2) ZIP archive.
Why it matters now
EPSS 0.03407 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 · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:avg:avg_anti-virus:*:*:*:*:*:*:*:* | up to 8.0.156 | Vulnerable | AVG |
| cpe:2.3:a:avg:avg_anti-virus:6.0.710:*:*:*:*:*:*:* | 6.0.710 | Vulnerable | AVG |
| cpe:2.3:a:avg:avg_anti-virus:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | AVG |
| cpe:2.3:a:avg:avg_anti-virus:7.0.251:*:*:*:*:*:*:* | 7.0.251 | Vulnerable | AVG |
| cpe:2.3:a:avg:avg_anti-virus:7.0.323:*:*:*:*:*:*:* | 7.0.323 | Vulnerable | AVG |
| cpe:2.3:a:avg:avg_anti-virus:7.1.308:*:*:*:*:*:*:* | 7.1.308 | Vulnerable | AVG |
| cpe:2.3:a:avg:avg_anti-virus:7.1.407:*:*:*:*:*:*:* | 7.1.407 | Vulnerable | AVG |
| cpe:2.3:a:avg:avg_anti-virus:7.5.51:*:*:*:*:*:*:* | 7.5.51 | Vulnerable | AVG |
| cpe:2.3:a:avg:avg_anti-virus:7.5.448:*:*:*:*:*:*:* | 7.5.448 | Vulnerable | AVG |
| cpe:2.3:a:avg:avg_anti-virus:7.5.476:*:*:*:*:*:*:* | 7.5.476 | Vulnerable | AVG |
- cpe:2.3:a:avg:avg_anti-virus:*:*:*:*:*:*:*:* Versions up to 8.0.156 Vulnerable ·AVG
- cpe:2.3:a:avg:avg_anti-virus:6.0.710:*:*:*:*:*:*:* Versions 6.0.710 Vulnerable ·AVG
- cpe:2.3:a:avg:avg_anti-virus:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·AVG
- cpe:2.3:a:avg:avg_anti-virus:7.0.251:*:*:*:*:*:*:* Versions 7.0.251 Vulnerable ·AVG
- cpe:2.3:a:avg:avg_anti-virus:7.0.323:*:*:*:*:*:*:* Versions 7.0.323 Vulnerable ·AVG
- cpe:2.3:a:avg:avg_anti-virus:7.1.308:*:*:*:*:*:*:* Versions 7.1.308 Vulnerable ·AVG
- cpe:2.3:a:avg:avg_anti-virus:7.1.407:*:*:*:*:*:*:* Versions 7.1.407 Vulnerable ·AVG
- cpe:2.3:a:avg:avg_anti-virus:7.5.51:*:*:*:*:*:*:* Versions 7.5.51 Vulnerable ·AVG
- cpe:2.3:a:avg:avg_anti-virus:7.5.448:*:*:*:*:*:*:* Versions 7.5.448 Vulnerable ·AVG
- cpe:2.3:a:avg:avg_anti-virus:7.5.476:*:*:*:*:*:*:* Versions 7.5.476 Vulnerable ·AVG
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2009-1784
- 2026-10-03 Alias added: GHSA-x7h4-8fq8-wv2j
References
More Avg Anti-virus vulnerabilities
- TI-2012-01284 The ZIP file parser in AhnLab V3 Internet Security 2011.01.18.00, AVG Anti-Virus… CVSS 2.0MEDIUM 4.3
- TI-2012-01283 The Gzip file parser in AVG Anti-Virus 10.0.0.1190, Bitdefender 7.2, Command Antivirus… CVSS 2.0MEDIUM 4.3
- TI-2012-01281 The TAR file parser in AhnLab V3 Internet Security 2011.01.18.00, Avira AntiVir… CVSS 2.0MEDIUM 4.3
- TI-2012-01279 The TAR file parser in Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7, avast!… CVSS 2.0MEDIUM 4.3
- TI-2012-01278 The TAR file parser in AVG Anti-Virus 10.0.0.1190, Quick Heal (aka Cat QuickHeal) 11.00… CVSS 2.0MEDIUM 4.3
- TI-2012-01265 The RAR file parser in ClamAV 0.96.4, Rising Antivirus 22.83.00.03, Quick Heal (aka Cat… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2009-1784 · CVE Program
- CVE-2009-1784 · NVD
- FIRST EPSS
- GHSA-x7h4-8fq8-wv2j · GitHub Advisory Database · CC BY 4.0
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