CVE-2025-3025

Elevation of Privileges in the cleaning feature of Gen Digital CCleaner version 6.33.11465 on Windows allows a local user to gain SYSTEM privileges via exploiting insecure file delete operations. Reported in CCleaner v. 6.33.11465. This issue affects CCleaner: before 6.36.11508...

CVE-2025-3025 CCleaner Link Following Local Privilege Escalation Vulnerability

Elevation of Privileges in the cleaning feature of Gen Digital CCleaner version 6.33.11465 on Windows allows a local user to gain SYSTEM privileges via exploiting insecure file delete operations. Reported in CCleaner v. 6.33.11465. This issue affects CCleaner: before 6.36.11508...

CVE-2025-3025 CCleaner Link Following Local Privilege Escalation Vulnerability

Elevation of Privileges in the cleaning feature of Gen Digital CCleaner version 6.33.11465 on Windows allows a local user to gain SYSTEM privileges via exploiting insecure file delete operations. Reported in CCleaner v. 6.33.11465. This issue affects CCleaner: before 6.36.11508...

CVE-2025-3025

Gen Digital CCleaner for Windows is affected by CVE-2025-3025 through insecure file deletion in the Cleaning feature. The root cause is unsafe deletion operations that enable a local user to escalate to SYSTEM privileges (reported on CCleaner v6.33.11465; affected before v6.36.11508). Exploitatio...

PT-2025-37479

Name of the Vulnerable Software and Affected Versions Gen Digital CCleaner versions prior to 6.36.11508 Description A local user can gain SYSTEM privileges through insecure file delete operations within the cleaning feature on Windows. Recommendations Update to version 6.36.11508 or later...

CVE-2025-3025: Files or Directories Accessible to External Parties

Elevation of Privileges in the cleaning feature of Gen Digital CCleaner version 6.33.11465 on Windows allows a local user to gain SYSTEM privileges via exploiting insecure file delete operations. Reported in CCleaner v. 6.33.11465. This issue affects CCleaner: before 6.36.11508...

Gen Digital CCleaner 安全漏洞

Gen Digital CCleaner is a system optimization and cleanup tool from Gen Digital USA. A security vulnerability exists in Gen Digital CCleaner versions prior to 6.36.11508, which stems from an unsafe file deletion operation in the cleanup function that could lead to a local user gaining SYSTEM...

Avast, NordVPN Breaches Tied to Phantom User Accounts

Antivirus and security giant Avast and virtual private networking VPN software provider NordVPN each today disclosed months-long network intrusions that -- while otherwise unrelated -- shared a common cause: Forgotten or unknown user accounts that granted remote access to internal systems with...

Avast Network Breached As Hackers Target CCleaner Again

Czech antivirus vendor Avast on Monday warned that hackers were able to access its internal network using a temporary VPN account. Avast said that it believes that the intrusion, first detected on Sept. 25, was likely targeting its CCleaner business in a supply chain attack. CCleaner, which is...

A week in security (September 23 – 29)

Last week on Labs, we highlighted an Emotet campaign using Snowden’s new book as a lure, discussed how 15,000 webcams are vulnerable to attack, how insurance data security laws skirt political turmoil, and how the new iOS exploit checkm8 allows permanent compromise of iPhones. Other cybersecurity...

More Attacks against Computer Automatic Update Systems

Last month, Kaspersky discovered that Asus's live update system was infected with malware, an operation it called Operation Shadowhammer. Now we learn that six other companies were targeted in the same operation. As we mentioned before, ASUS was not the only company used by the attackers. Studyin...

CCleaner Adds Data Collection Feature With No Way to Opt-Out

Like many others, do you also believe that the popular system-cleaning tool CCleaner was performing well before Avast acquired the software from Piriform last year? If yes, then pop-up advertisements in the previous CCleaner software version was not the last thing you have to deal with. Avast has...

CCleaner Adds Data Collection Feature With No Way to Opt-Out

Like many others, do you also believe that the popular system-cleaning tool CCleaner was performing well before Avast acquired the software from Piriform last year? If yes, then pop-up advertisements in the previous CCleaner software version was not the last thing you have to deal with. Avast has...

Stolen D-Link Certificate Used to Digitally Sign Spying Malware

Digitally signed malware has become much more common in recent years to mask malicious intentions. Security researchers have discovered a new malware campaign misusing stolen valid digital certificates from Taiwanese tech-companies, including D-Link, to sign their malware and making them look lik...

CCleaner Portable Detection (Windows SMB Login)

SMB login and WMI file search based detection of CCLeaner Portable. SPDX-FileCopyrightText: 2018 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CCleaner Attack Timeline—Here's How Hackers Infected 2.3 Million PCs

Last year, the popular system cleanup software CCleaner suffered a massive supply-chain malware attack of all times, wherein hackers compromised the company's servers for more than a month and replaced the original version of the software with the malicious one. The malware attack infected over 2...

CCleaner Attackers Intended To Deploy Keylogger In Third Stage

CANCUN, Mexico – As investigations continue into a backdoor that was planted in the CCleaner utility in 2017, Avast said it has found that the threat actors behind the attack were planning to install a third round of ShadowPad malware on compromised computers. Avast, which acquired the maker of...

2017 in Snort Signatures.

This post was written by Martin Lee and Vanja Svajcer. 2017 was an eventful year for cyber security with high profile vulnerabilities that allowed self-replicating worm attacks such as WannaCry and BadRabbit to impact organizations throughout the world. In 2017, Talos researchers discovered many...

Disassembler and Runtime Analysis

This post was authored by Paul Rascagneres.IntroductionIn the CCleaner 64bit stage 2 previously described in our blog, we explained that the attacker modified a legitimate executable that is part of "Symantec Endpoint". This file is named EFACli64.dll. The modification is performed in the runtime...

A week in security (October 02 – October 08)

Last week, we gave you some tips for National Cybersecurity Awareness Month, walked through an exploration of a small adware file, and explored the complicated world of the Homograph attack. Here's what else happened in security. VB2017 Many of our team members attended VB2017 in Madrid, one of t...