VDB-370796 · CVE-2025-14098 · EUVD-2025-210136

Gen Digital Avira Antivirus 8.3.70.64 on Windows Executable File out-of-bounds write

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.9	$5k-$25k	1.12

Summaryinfo

A vulnerability was found in Gen Digital Avira Antivirus on Windows. It has been declared as critical. This affects an unknown function of the component Executable File Handler. Such manipulation leads to out-of-bounds write. This vulnerability is documented as CVE-2025-14098. The attack can be executed remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Gen Digital Avira Antivirus on Windows and classified as critical. Affected by this issue is some unknown processing of the component Executable File Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Heap buffer out-of-bounds write vulnerability due to integer overflow in Avira Antivirus engine when scanning a malformed MS-DOS executable file may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.70.104.

The advisory is shared for download at gendigital.com. This vulnerability is handled as CVE-2025-14098 since 12/05/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 06/13/2026).

Upgrading to version 8.3.70.104 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-210136). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Anti-Malware Software

Vendor

Gen Digital

Name

Avira Antivirus

Version

8.3.70.64

CPE 2.3info

🔒

CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (GEN): 🔒

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Avira Antivirus 8.3.70.104

Timelineinfo

12/05/2025 CVE reserved
06/13/2026 +189 days Advisory disclosed
06/13/2026 +0 days VulDB entry created
06/13/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: gendigital.com
Status: Confirmed

CVE: CVE-2025-14098 (🔒)
GCVE (CVE): GCVE-0-2025-14098
GCVE (VulDB): GCVE-100-370796
EUVD: 🔒

Entryinfo

Created: 06/13/2026 07:09
Updated: 06/13/2026 12:53
Changes: 06/13/2026 07:09 (66), 06/13/2026 12:53 (1)
Complete: 🔍
Cache ID: 216::103