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This week you have quite a long list of updates to follow from Microsoft, Adobe as well as Firefox. Despite announcing plans to kill its monthly patch notification for Windows 10, the tech giant has issued its May 2015 Patch Tuesday , releasing 13 security bulletins that addresses a total of 48 security vulnerabilities in many of their products. Separately, Adobe has also pushed a massive security update to fix a total of 52 vulnerabilities in its Flash Player, Reader, AIR and Acrobat software. Moreover, Mozilla has fixed 13 security flaws in its latest stable release of Firefox web browser, Firefox 38, including five critical flaws. First from the Microsoft's side: MICROSOFT PATCH TUESDAY Three out of 13 security bulletins issued by the company are rated as 'critical', while the rest are 'important' in severity, with none of these vulnerabilities are actively exploited at this time. The affected products include Internet Explorer (IE), ...

Browser maker Mozilla is urging users to update their Firefox instances to the latest version to avoid facing issues with using add-ons due to the impending expiration of a root certificate. "On March 14, 2025, a root certificate used to verify signed content and add-ons for various Mozilla projects, including Firefox, will expire," Mozilla said . "Without updating to Firefox version 128 or higher (or ESR 115.13 + for ESR users, including Windows 7/8/8.1 and macOS 10.12-10.14 users), this expiration may cause significant issues with add-ons, content signing, and DRM-protected media playback." Mozilla said the latest version of Firefox includes a new root certificate that will prevent this from happening. The update is crucial for all users of Firefox running a version prior to 128, or Extended Support Release (ESR) versions before 115.13, both of which were released on July 9, 2024. This includes all versions of Firefox for Windows, macOS, Linux, and Android...

Recently uncovered two huge processor vulnerabilities called Meltdown and Spectre have taken the whole world by storm, while vendors are rushing out to patch the vulnerabilities in its products. The issues apply to all modern processors and affect nearly all operating systems (Windows, Linux, Android, iOS, macOS, FreeBSD, and more), smartphones and other computing devices made in the past 20 years. What are Spectre and Meltdown? We have explained both , Meltdown (CVE-2017-5754) and Spectre (CVE-2017-5753, CVE-2017-5715), exploitation techniques in our previous article. In short, Spectre and Meltdown are the names of security vulnerabilities found in many processors from Intel, ARM and AMD that could allow attackers to steal your passwords, encryption keys and other private information. Both attacks abuse 'speculative execution' to access privileged memory—including those allocated for the kernel—from a low privileged user process like a malicious app running on a...

Microsoft on Tuesday disclosed that three new security flaws impacting the Windows platform have come under active exploitation as part of its Patch Tuesday update for September 2024. The monthly security release addresses a total of 79 vulnerabilities, of which seven are rated Critical, 71 are rated Important, and one is rated Moderate in severity. This is aside from 26 flaws that the tech giant resolved in its Chromium-based Edge browser since last month's Patch Tuesday release. The three vulnerabilities that have been weaponized in a malicious context are listed below, alongside a bug that Microsoft is treating as exploited - CVE-2024-38014 (CVSS score: 7.8) - Windows Installer Elevation of Privilege Vulnerability CVE-2024-38217 (CVSS score: 5.4) - Windows Mark-of-the-Web (MotW) Security Feature Bypass Vulnerability CVE-2024-38226 (CVSS score: 7.3) - Microsoft Publisher Security Feature Bypass Vulnerability CVE-2024-43491 (CVSS score: 9.8) - Microsoft Windows Updat...

Mozilla has officially released its latest build Firefox 31 for all supported platforms, addressing 11 vulnerabilities in total, three of which are marked critical that could have been exploited by hackers to mount remote code execution attacks. Mozilla Firefox recommends its users to install the security update as soon as possible, warning that the three critical vulnerabilities discovered in its browser could be exploited by attackers and leverage them to " run attacker code and install software, requiring no user interaction beyond normal browsing ". CRITICAL VULNERABILITIES The three major vulnerabilities are as follows: MFSA 2014-62 - This is one of the three critical vulnerabilities reported by Patrick Cozzi and get fixed in the newer version of the browser. The vulnerability allows the exploitation of a WebGL crash with Cesium JavaScript library. Much details about the flaw are not known at the time, but Mozilla notes that the flaw cannot be exploi...

Good news for Firefox lovers! The Mozilla Foundation has introduced a bunch of new features in Firefox to improve browser security with the launch of Firefox 32, now available for Windows, Mac, Linux, and Android platforms. The new version of Firefox makes the browser even more competitive among others. Firefox version 32 has some notable security improvements, including a new HTTP cache for improved performance, public key pinning - a defense that would help protect its users from man-in-the-middle and other attacks, and easy language switching on Android. PUBLIC KEY PINNING ENABLED BY-DEFAULT In the latest Firefox version 32, Mozilla has enabled Public Key Pinning support by default that will protect its users from man-in-the-middle-attacks and rogue certificate authorities. Public key pinning is a security measure that ensures people that they are connecting to the websites they intend to. Pinning allows users to keep track of certificates in order to specify wh...

Important Update (21 June 2019) ➤  The Tor Project on Friday released second update ( Tor Browser 8.5.3 ) for its privacy web-browser that patches the another Firefox zero-day vulnerability patched this week. Following the latest critical update for Firefox, the Tor Project today released an updated version of its anonymity and privacy browser to patch the same Firefox vulnerability in its bundle. Earlier this week, Mozilla released Firefox 67.0.3 and Firefox ESR 60.7.1 versions to patch a critical actively-exploited vulnerability ( CVE-2019-11707 ) that could allow attackers to remotely take full control over systems running the vulnerable browser versions. Besides updating Firefox, the latest Tor Browser 8.5.2 for desktops also includes updated NoScript version 10.6.3 that fixes a few known issues. According to the Tor Project Team, if you are already using Tor browser with "safer" and "safest" security levels, the flaw doesn't affect you. For som...

The critical Firefox vulnerability being actively exploited in the wild to unmask Tor users has been patched with the release of new browser updates. Both Mozilla and Tor Project has patched the vulnerability that allows attackers to remotely execute malicious code on Windows operating system via memory corruption vulnerability in Firefox web browser. Tor Browser Bundle is a repackaged version of the open-source Mozilla Firefox browser that runs connections through the Tor anonymizing network configured to hide its user's public IP address. However, the exploit code released by an unnamed online user was currently being exploited against Tor Browser users to leak the potentially identifying information of Tor users. "The security flaw responsible for this urgent release is already actively exploited on Windows systems," an official of the anonymity network wrote in an advisory published on Wednesday.  "Even though there is currently...no similar explo...

You must update your Google Chrome now. Security researcher Michał Bentkowski discovered and reported a high severity vulnerability in Google Chrome in late May, affecting the web browsing software for all major operating systems including Windows, Mac, and Linux. Without revealing any technical detail about the vulnerability, the Chrome security team described the issue as incorrect handling of CSP header ( CVE-2018-6148 ) in a blog post published today. "Access to bug details and links may be kept restricted until a majority of users are updated with a fix. We will also retain restrictions if the bug exists in a third party library that other projects similarly depend on, but haven't yet fixed," the Chrome security team notes. Content Security Policy (CSP) header allows website administrators to add an extra layer of security on a given web page by allowing them to control resources the browser is allowed to load. Mishandling of CSP headers by your web brow...

Microsoft on Tuesday rolled out its first security update for 2026 , addressing 114 security flaws, including one vulnerability that it said has been actively exploited in the wild. Of the 114 flaws, eight are rated Critical, and 106 are rated Important in severity. As many as 58 vulnerabilities have been classified as privilege escalation, followed by 22 information disclosure, 21 remote code execution, and five spoofing flaws. According to data collected by Fortra, the update marks the third-largest January Patch Tuesday after January 2025 and January 2022. These patches are in addition to two security flaws that Microsoft has addressed in its Edge browser since the release of the December 2025 Patch Tuesday update, including a spoofing flaw in its Android app ( CVE-2025-65046 , 3.1) and a case of insufficient policy enforcement in Chromium's WebView tag ( CVE-2026-0628 , CVSS score: 8.8). The vulnerability that has come under in-the-wild exploitation is CVE-2026-20805 (CV...

Warning for Adobe users! Another zero-day vulnerability has been discovered in Adobe Flash Player   that is actively being exploited by cyber crooks in drive-by download attacks, security researchers warned today. This is for the third time in last few weeks when Adobe is dealing with a zero day vulnerability in Flash Player. The Adobe Flash Player Vulnerability identified as CVE-2015-0313 , exists in the latest version of Flash Player, i.e. version 16.0.0.296 and earlier. In late January, Adobe released an updated version of its Flash player software that patches zero-day vulnerability, tracked as CVE-2015-0311 , spotted by French security researcher Kafeine. This Adobe Flash Player Vulnerability was also being actively exploited via Malvertisement and drive-by-download attacks. In case of a "drive-by-download" attack, an attacker downloads a malicious software to a victim's computer without their knowledge or explicit consent. As a result, the flaw cou...

The latest version of Mozilla's Firefox browser has been taken offline after a security vulnerability was discovered. Mozilla's Firefox 16 web browser got its regular six-weekly update yesterday but the organisation decided to pull the browser hours after the release. The outfit claimed it became aware of a security vulnerability in Firefox 16 and that updates are expected to ship at some point today. According to the Mozilla Security Blog , Firefox 16 features a security vulnerability that allows " a malicious site to potentially determine which websites users have visited and have access to the URL or URL parameters. " " As a precaution, users can downgrade to version 15.0.1 " - Firefox 16 offers several new features, most of which are aimed at developers. One such feature is the Developer Command Line, which provides keyboard control over the Developer Tools. Other features include CSS3 Animations, Image Values, IndexedDB, Transitions, and Transforms. ...

Mozilla has rolled out the latest Version 37 of its Firefox browser for Windows desktop, Mac, Linux and Android operating systems. The new release also adds patches for 13 different security advisories along with some new security improvements as well as user-experience features. The biggest security feature added to Firefox 37 among others is the "Opportunistic Encryption" (OE) for servers and websites that support " HTTP/2 AltSvc. " Opportunistic Encryption (OE) allows Firefox browser to encrypt the traffic over plaintext HTTP connection without any need to authenticate it. This will help you to create, not complete, but some confidentiality from attackers to eavesdrop on your connection. So Opportunistic encryption can be implemented with very minimal changes to an existing IPsec implementation. The move by Mozilla is really a bonus for HTTP users with no encryption measure at all, but still it is not as good as authenticated encryption ...

Mozilla has released updates to address a critical security flaw impacting its Firefox browser for Windows, merely days after Google patched a similar flaw in Chrome that came under active exploitation as a zero-day. The security vulnerability, CVE-2025-2857, has been described as a case of an incorrect handle that could lead to a sandbox escape. "Following the recent Chrome sandbox escape (CVE-2025-2783), various Firefox developers identified a similar pattern in our IPC [inter-process communication] code," Mozilla said in an advisory. "A compromised child process could cause the parent process to return an unintentionally powerful handle, leading to a sandbox escape." The shortcoming, which affects Firefox and Firefox ESR, has been addressed in Firefox 136.0.4, Firefox ESR 115.21.1, and Firefox ESR 128.8.1. There is no evidence that CVE-2025-2857 has been exploited in the wild. The Tor Project has also shipped a security update for the Tor Browser (versio...

Okay, folks, it's time to update your Firefox web browser once again—yes, for the second time this week. After patching a critical actively-exploited vulnerability in Firefox 67.0.3 earlier this week, Mozilla is now warning millions of its users about a second zero-day vulnerability that attackers have been found exploiting in the wild. The newly patched issue ( CVE-2019-11708 ) is a "sandbox escape" vulnerability, which if chained together with the previously patched "type confusion" bug ( CVE-2019-11707 ), allows a remote attacker to execute arbitrary code on victims' computers just by convincing them into visiting a malicious website. Browser sandboxing is a security mechanism that keeps third-party processes isolated and confined to the browser, preventing them from damaging other sensitive parts of a computer's operating system. "Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent proc...

A critical vulnerability resides in the fully-patched version of the Mozilla's Firefox browser that could allow well-resourced attackers to launch man-in-the-middle (MITM) impersonation attacks and also affects the Tor anonymity network. The Tor Project patched the issue in the browser's HTTPS certificate pinning system on Friday with the release of its Tor Browser version 6.0.5 , while Mozilla still has to patch the critical flaw in Firefox. Attackers can deliver Fake Tor and Firefox Add-on Updates The vulnerability could allow a man-in-the-middle attacker who is able to obtain a forged certificate for addons.mozilla.org to impersonate Mozilla servers and as a result, deliver a malicious update for NoScript, HTTPS Everywhere or other Firefox extensions installed on a targeted computer. "This could lead to arbitrary code execution [vulnerability]," Tor officials warned in an advisory. "Moreover, other built-in certificate pinnings are affected as wel...

Mozilla has released an important update for its Firefox web browser to patch a critical vulnerability that could allow remote attackers to execute malicious code on computers running an affected version of the browser. The update comes just a week after the company rolled out its new Firefox Quantum browser, a.k.a Firefox 58, with some new features like improved graphics engine and performance optimizations and patches for more than 30 vulnerabilities. According to a security advisory published by Cisco, Firefox 58.0.1 addresses an 'arbitrary code execution' flaw that originates due to 'insufficient sanitization' of HTML fragments in chrome-privileged documents (browser UI). Hackers could exploit this vulnerability (CVE-2018-5124) to run arbitrary code on the victim's computer just by tricking them into accessing a link or ' opening a file that submits malicious input to the affected software .' "A successful exploit could allow the attacker t...