CVE-2025-4134
HighSummary
Brak walidacji plików w funkcji do_update_vps w Avast Business Antivirus dla systemu Linux 4.5 umożliwia lokalnemu użytkownikowi oszustwo lub manipulację plikiem aktualizacji poprzez niezautoryzowane zapisanie pliku.
Risk Assessment
Organizacja może być narażona na wprowadzenie złośliwego oprogramowania lub nieautoryzowanych zmian w systemie, co może prowadzić do poważnych naruszeń bezpieczeństwa.
Recommendation
Zaleca się wdrożenie odpowiednich mechanizmów walidacji plików aktualizacji oraz monitorowanie dostępu do systemu w celu zminimalizowania ryzyka.
Related vulnerabilities
- CVE-2026-101001Critical
Vulnerability in Netcore NBR200V2 1.3.241127.071246 in the eval function of /www/cgi-bin/network_tools in the web management interface. Manipulation of the QUERY_STRING argument leads to OS command injection. Remote attack possible, exploit publicly available.
- CVE-2026-101000Critical
Vulnerability in Netcore NBR100V2 1.3.240614.030928 in the uci.apply function of /usr/share/rpcd/acl.d/unauthenticated.json in the ACL Handler component. Manipulation of the section argument leads to missing authorization. Remote attack possible, exploit publicly disclosed.
- CVE-2026-100896Critical
Vulnerability in TOTOLINK N150RT 3.4.0-B20201030 in the system function of /boafrm/formWlSiteSurvey in the web management interface. Manipulation of the wlanif argument leads to OS command injection. Remote attack possible, exploit publicly available.
- CVE-2026-100886Critical
A vulnerability was identified in Seetong T8108, T8108P, T8116 and T8232 version 4.6.1.4-build202604241011. The affected element is an unknown function of the Debug Service component, leading to improper authentication. The attack can be launched remotely and the exploit is publicly available.
- CVE-2026-101090Critical
Nezha 2.2.3 contains a Host header injection regression in the OAuth2 redirect endpoint. When the dashboard_host setting is empty, /api/v1/oauth2/{provider} reflects the attacker-supplied Host header into the redirect_uri. An attacker can steal the victim's authorization code and take over the account.
- CVE-2026-101084Critical
obot versions before v0.21.1 fail to enforce Access Control Rules on the /mcp-connect endpoint, allowing any authenticated user to connect to restricted MCP servers if they possess the server ID. Attackers can bypass authorization to access sensitive backend systems.
- CVE-2026-101065Critical
Obot up to commit d7e6970, when started via the Docker quickstart from README, listens on 0.0.0.0:8080 with authentication disabled. Every request is mapped to a synthetic 'nobody' user with Owner and Admin roles, granting full administrative access. The quickstart also mounts /var/run/docker.sock, giving access to the host's Docker control surface.
- CVE-2026-88773Critical
HTTP Request/Response Smuggling vulnerability in Citrix NetScaler ADC and Gateway due to inconsistent interpretation of HTTP requests.
- CVE-2026-88772CriticalActively exploited
Vulnerability in Citrix NetScaler ADC and Gateway leading to Remote Code Execution or Denial of Service.
- CVE-2026-88771CriticalActively exploited
Improper input validation in Citrix NetScaler ADC and Gateway allows an unauthenticated attacker to execute arbitrary commands.
Original NVD description (English source)
Lack of file validation in do_update_vps in Avast Business Antivirus for Linux 4.5 on Linux allows local user to spoof or tamper with the update file via an unverified file write.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS