An Improper link resolution before file access ('link following') vulnerability in the File Shredder module as used in Bitdefender Total Security and Internet Security on Windows allows a less-privileged local user to elevate rights by leveraging a race conditions via Symbolic Links.

This issue affects Total Security: before 27.0.58.315; Internet Security: before 27.0.58.315.

This vulnerability allows local attackers to escalate privileges on affected installations of Bitdefender Total Security. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.3. The following CVEs are assigned: CVE-2026-6851.

This vulnerability allows local attackers to escalate privileges on affected installations of Bitdefender Total Security. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.3. The following CVEs are assigned: CVE-2026-6851.

Bitdefender Napoca bare-metal hypervisor contains an out-of-bounds write vulnerability in the BIOS INT 0x15 / E820 memory map handler, implemented in napoca/guests/bioshandlers.c. The handler computes a destination offset into the guest RealModeMemory buffer from guest-controlled ES and EDI register values without validating that the resulting address remains within the 1MB RealModeMemory allocation. A malicious guest operating in real mode can trigger the issue by invoking INT 0x15 with AX=0xE820, EDX=0x534D4150, ECX greater than or equal to 20, EBX=0, ES=0xFFFF, and EDI=0xFFFF. This can cause a write of up to 20 bytes past the end of the RealModeMemory buffer into the hypervisor heap. The product is end-of-life and unsupported when assigned.

The Bitdefender Napoca bare-metal hypervisor contains an out-of-bounds write vulnerability in the real-mode hook handler, implemented in napoca/kernel/handler.c. The handler uses a guest-controlled SS:SP-derived offset as an index into the 1MB RealModeMemory buffer without bounds validation. With SS=0xFFFF and ESP=0xFFFF, the computed offset can reach 0x10FFEF, exceeding the RealModeMemory buffer by 65,519 bytes. The IRET frame push can therefore write past the end of the buffer into the hypervisor heap. The product is end-of-life and unsupported when assigned.

A host whitelist parser issue in the proxy service implemented in the GravityZone Update Server allows an attacker to cause a server-side request forgery. This issue only affects GravityZone Console versions before 6.38.1-2 that are running only on premise.

An out-of-bounds write vulnerability in Bitdefender Engines on Windows causes the engine to crash. This issue affects Bitdefender Engines version 7.94791 and lower.

An Improper Input Validation vulnerability in the Product Update feature of Bitdefender Endpoint Security Tools for Linux allows a man-in-the-middle attacker to abuse the DownloadFile function of the Product Update to achieve remote code execution. This issue affects: Bitdefender Endpoint Security Tools for Linux versions prior to 6.2.21.155.

Uncontrolled Search Path Element vulnerability in the openssl component as used in Bitdefender GravityZone Business Security allows an attacker to load a third party DLL to elevate privileges. This issue affects Bitdefender GravityZone Business Security versions prior to 6.6.23.329.

A vulnerability in the AntivirusforMac binary as used in Bitdefender Antivirus for Mac allows an attacker to inject a library using DYLD environment variable to cause third-party code execution

A vulnerability in the improper handling of junctions before deletion in Bitdefender Total Security 2020 can allow an attacker to to trigger a denial of service on the affected device.

Untrusted Search Path vulnerability in Bitdefender High-Level Antimalware SDK for Windows allows an attacker to load third party code from a DLL library in the search path. This issue affects: Bitdefender High-Level Antimalware SDK for Windows versions prior to 3.0.1.204 .

A privilege escalation vulnerability in BDLDaemon as used in Bitdefender Antivirus for Mac allows a local attacker to obtain authentication tokens for requests submitted to the Bitdefender Cloud. This issue affects: Bitdefender Bitdefender Antivirus for Mac versions prior to 8.0.0.

BitDefender Total Security 2018 allows local users to gain privileges or cause a denial of service by impersonating all the pipes through a use of an "insecurely created named pipe". Ensures full access to Everyone users group.

Code injection vulnerability in Bitdefender Total Security 12.0 (and earlier), Internet Security 12.0 (and earlier), and Antivirus Plus 12.0 (and earlier) allows a local attacker to bypass a self-protection mechanism, inject arbitrary code, and take full control of any Bitdefender process via a "DoubleAgent" attack. One perspective on this issue is that (1) these products do not use the Protected Processes feature, and therefore an attacker can enter an arbitrary Application Verifier Provider DLL under Image File Execution Options in the registry; (2) the self-protection mechanism is intended to block all local processes (regardless of privileges) from modifying Image File Execution Options for these products; and (3) this mechanism can be bypassed by an attacker who temporarily renames Image File Execution Options during the attack.

Cross-site scripting (XSS) vulnerability in BitDefender Internet Security 2009 allows user-assisted remote attackers to inject arbitrary web script or HTML via the filename of a virus-infected file, as demonstrated by a filename inside a (1) rar or (2) zip archive file.

A local privilege escalation vulnerability in Bitdefender Total Security versions prior to 27.0.47.241 allows low-privileged attackers to elevate privileges. The issue arises from bdservicehost.exe deleting files from a user-writable directory (C:\ProgramData\Atc\Feedback) without proper symbolic link validation, enabling arbitrary file deletion. This issue is chained with a file copy operation during network events and a filter driver bypass via DLL injection to achieve arbitrary file copy and code execution as elevated user.

Incorrect access control in the fingerprint authentication mechanism of Bitdefender Mobile Security v4.11.3-gms allows attackers to bypass fingerprint authentication due to the use of a deprecated API.

An improper access restriction to a folder in Bitdefender Endpoint Security Tools for Mac (BEST) before 7.20.52.200087 allows local users with administrative privileges to bypass the configured uninstall password protection. An unauthorized user with sudo privileges can manually remove the application directory (/Applications/Endpoint Security for Mac.app/) and the related directories within /Library/Bitdefender/AVP without needing the uninstall password.

A server-side request forgery (SSRF) vulnerability exists in the Bitdefender GravityZone Update Server when operating in Relay Mode. The HTTP proxy component on port 7074 uses a domain allowlist to restrict outbound requests, but fails to properly sanitize hostnames containing null-byte (%00) sequences. By crafting a request to a domain such as evil.com%00.bitdefender.com, an attacker can bypass the allowlist check, causing the proxy to forward requests to arbitrary external or internal systems.

A vulnerability in the sendMailFromRemoteSource method in Emails.php  as used in Bitdefender GravityZone Console unsafely uses php unserialize() on user-supplied input without validation. By crafting a malicious serialized payload, an attacker can trigger PHP object injection, perform a file write, and gain arbitrary command execution on the host system.

A server-side request forgery (SSRF) vulnerability in Bitdefender GravityZone Console allows an attacker to bypass input validation logic using leading characters in DNS requests. Paired with other potential vulnerabilities, this bypass could be used for execution of third party code. This issue affects GravityZone Console: before 6.41.2.1.

A Cross-Site Scripting (XSS) vulnerability has been identified in Psono-Client’s handling of vault entries of type websitepassword and bookmark, as used in Bitdefender SecurePass. The client does not properly sanitize the URL field in these entries. As a result, an attacker can craft a malicious vault entry (or trick a user into creating or importing one) with a javascript:URL. When the user interacts with this entry (for example, by clicking or opening it), the application will execute the malicious JavaScript in the context of the Psono vault. This allows an attacker to run arbitrary code in the victim’s browser, potentially giving them access to the user’s password vault and sensitive data.

An improper access control vulnerability exists in Bitdefender Box 1 (firmware version 1.3.52.928 and below) that allows an unauthenticated attacker to downgrade the device's firmware to an older, potentially vulnerable version of a Bitdefender-signed firmware. The attack requires Bitdefender BOX to be booted in Recovery Mode and that the attacker be present within the WiFi range of the BOX unit.

A command injection vulnerability exists in the /checkimageandtriggerrecovery API endpoint of Bitdefender Box 1 (firmware version 1.3.11.490). This flaw allows an unauthenticated, network-adjacent attacker to execute arbitrary commands on the device, potentially leading to full remote code execution (RCE).

Bitdefender Box, versions 1.3.11.490 through 1.3.11.505, uses the insecure HTTP protocol to download assets over the Internet to update and restart daemons and detection rules on the devices. Updates can be remotely triggered through the /settemptoken API method. Then, an unauthenticated and network-adjacent attacker can use man-in-the-middle (MITM) techniques to return malicious responses. Restarted daemons that use malicious assets can then be exploited for remote code execution on the device.

An Improper Access Control vulnerability in the bdservicehost.exe component, as used in Bitdefender Engines for Windows, allows an attacker to delete privileged registry keys by pointing a Registry symlink to a privileged key. This issue affects: Bitdefender Engines versions prior to 7.92659. It also affects Bitdefender Antivirus Free, Bitdefender Antivirus Plus, Bitdefender Internet Security, Bitdefender Total Security, as well as Bitdefender Endpoint Security Tools for Windows with engine versions prior to 7.92659.

Unspecified vulnerability in BitDefender allows attackers to execute arbitrary code via unspecified vectors, aka EEYEB-20071024. NOTE: as of 20071029, the only disclosure is a vague pre-advisory with no actionable information. However, since it is from a well-known researcher, it is being assigned a CVE identifier for tracking purposes.