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8 vulnerabilities found for Avast Antivirus by Avast
CVE-2025-71326 (GCVE-0-2025-71326)
Vulnerability from nvd – Published: 2026-06-19 14:16 – Updated: 2026-06-22 16:42
VLAI
Title
AVAST Antivirus 25.11 Unquoted Service Path Privilege Escalation
Summary
AVAST Antivirus 25.11 contains an unquoted service path vulnerability in the SecureLine service that allows local non-privileged users to execute code with elevated SYSTEM privileges. Attackers can exploit the unquoted binary path in the service configuration to inject malicious executables that execute with high-level system permissions.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-428 - Unquoted Search Path or Element
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/52510 | exploit |
| https://www.avast.com/ | product |
| https://www.vulncheck.com/advisories/avast-antivi… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Avast | AVAST Antivirus |
Affected:
25.11
|
Date Public
2025-12-17 00:00
Credits
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CVE-2023-1587 (GCVE-0-2023-1587)
Vulnerability from nvd – Published: 2023-04-19 18:39 – Updated: 2025-02-05 16:15
VLAI
Summary
Avast and AVG Antivirus for Windows were susceptible to a NULL pointer dereference issue via RPC-interface. The issue was fixed with Avast and AVG Antivirus version 22.11
Severity
5.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| AVAST | Avast Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
|
| AVG | AVG Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
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CVE-2023-1586 (GCVE-0-2023-1586)
Vulnerability from nvd – Published: 2023-04-19 18:35 – Updated: 2025-02-05 16:16
VLAI
Summary
Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the restore process leading to arbitrary file creation. The issue was fixed with Avast and AVG Antivirus version 22.11
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Avast | Avast Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
|
| AVG | AVG Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
Date Public
2023-04-20 19:00
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CVE-2023-1585 (GCVE-0-2023-1585)
Vulnerability from nvd – Published: 2023-04-19 18:27 – Updated: 2025-02-05 14:44
VLAI
Summary
Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the Quarantine process, leading to arbitrary file/directory deletion. The issue was fixed with Avast and AVG Antivirus version 22.11 and virus definitions from 14 February 2023 or later.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Avast | Avast Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
|
| AVG | AVG Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
Date Public
2023-04-20 19:00
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CVE-2025-71326 (GCVE-0-2025-71326)
Vulnerability from cvelistv5 – Published: 2026-06-19 14:16 – Updated: 2026-06-22 16:42
VLAI
Title
AVAST Antivirus 25.11 Unquoted Service Path Privilege Escalation
Summary
AVAST Antivirus 25.11 contains an unquoted service path vulnerability in the SecureLine service that allows local non-privileged users to execute code with elevated SYSTEM privileges. Attackers can exploit the unquoted binary path in the service configuration to inject malicious executables that execute with high-level system permissions.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-428 - Unquoted Search Path or Element
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/52510 | exploit |
| https://www.avast.com/ | product |
| https://www.vulncheck.com/advisories/avast-antivi… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Avast | AVAST Antivirus |
Affected:
25.11
|
Date Public
2025-12-17 00:00
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CVE-2023-1587 (GCVE-0-2023-1587)
Vulnerability from cvelistv5 – Published: 2023-04-19 18:39 – Updated: 2025-02-05 16:15
VLAI
Summary
Avast and AVG Antivirus for Windows were susceptible to a NULL pointer dereference issue via RPC-interface. The issue was fixed with Avast and AVG Antivirus version 22.11
Severity
5.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| AVAST | Avast Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
|
| AVG | AVG Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
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CVE-2023-1586 (GCVE-0-2023-1586)
Vulnerability from cvelistv5 – Published: 2023-04-19 18:35 – Updated: 2025-02-05 16:16
VLAI
Summary
Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the restore process leading to arbitrary file creation. The issue was fixed with Avast and AVG Antivirus version 22.11
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
2 products
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|---|---|---|---|
| Avast | Avast Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
|
| AVG | AVG Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
Date Public
2023-04-20 19:00
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CVE-2023-1585 (GCVE-0-2023-1585)
Vulnerability from cvelistv5 – Published: 2023-04-19 18:27 – Updated: 2025-02-05 14:44
VLAI
Summary
Avast and AVG Antivirus for Windows were susceptible to a Time-of-check/Time-of-use (TOCTOU) vulnerability in the Quarantine process, leading to arbitrary file/directory deletion. The issue was fixed with Avast and AVG Antivirus version 22.11 and virus definitions from 14 February 2023 or later.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Avast | Avast Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
|
| AVG | AVG Antivirus |
Affected:
22.5 , ≤ 22.10
(22.11)
|
Date Public
2023-04-20 19:00
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