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Mozilla

7,140 known vulnerabilities

444
CRITICAL
788
HIGH
788
MEDIUM
19
LOW

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firefox 1837 thunderbird 1183 firefox esr 435 firefox mobile 60 firefox focus 20 focus 16 network security services 16 thunderbird esr 14 bleach 5 vpn 4
2,039 CVEs · Page 24/41
4.3
CVE-2022-22749

When scanning QR codes, Firefox for Android would have allowed navigation to some URLs that do not point to web content.

6.5
CVE-2022-22748

Malicious websites could have confused Firefox into showing the wrong origin when asking to launch a program and handlin

6.5
CVE-2022-22747

After accepting an untrusted certificate, handling an empty pkcs7 sequence as part of the certificate data could have le

5.9
CVE-2022-22746

A race condition could have allowed bypassing the fullscreen notification which could have lead to a fullscreen window s

6.5
CVE-2022-22745

Securitypolicyviolation events could have leaked cross-origin information for frame-ancestors violations. This vulnerabi

8.8
CVE-2022-22744

The constructed curl command from the "Copy as curl" feature in DevTools was not properly escaped for PowerShell. This c

4.3
CVE-2022-22743

When navigating from inside an iframe while requesting fullscreen access, an attacker-controlled tab could have made the

6.5
CVE-2022-22742

When inserting text while in edit mode, some characters might have lead to out-of-bounds memory access causing a potenti

7.5
CVE-2022-22741

When resizing a popup while requesting fullscreen access, the popup would have become unable to leave fullscreen mode. T

8.8
CVE-2022-22740

Certain network request objects were freed too early when releasing a network request handle. This could have lead to a

6.5
CVE-2022-22739

Malicious websites could have tricked users into accepting launching a program to handle an external URL protocol. This

8.8
CVE-2022-22738

Applying a CSS filter effect could have accessed out of bounds memory. This could have lead to a heap-buffer-overflow ca

7.5
CVE-2022-22737

Constructing audio sinks could have lead to a race condition when playing audio files and closing windows. This could ha

7.0
CVE-2022-22736

If Firefox was installed to a world-writable directory, a local privilege escalation could occur when Firefox searched t

9.8
CVE-2022-1887

The search term could have been specified externally to trigger SQL injection. This vulnerability affects Firefox for iO

6.5
CVE-2022-1834

When displaying the sender of an email, and the sender name contained the Braille Pattern Blank space character multiple

8.8
CVE-2022-1802

If an attacker was able to corrupt the methods of an Array object in JavaScript via prototype pollution, they could have

8.8
CVE-2022-1529

An attacker could have sent a message to the parent process where the contents were used to double-index into a JavaScri

4.3
CVE-2022-1520

When viewing an email message A, which contains an attached message B, where B is encrypted or digitally signed or both,

5.4
CVE-2022-1197

When importing a revoked key that specified key compromise as the revocation reason, Thunderbird did not update the exis

6.5
CVE-2022-1196

After a VR Process is destroyed, a reference to it may have been retained and used, leading to a use-after-free and pote

6.5
CVE-2022-1097

<code>NSSToken</code> objects were referenced via direct points, and could have been accessed in an unsafe way on differ

8.8
CVE-2022-0843

Mozilla developers Kershaw Chang, Ryan VanderMeulen, and Randell Jesup reported memory safety bugs present in Firefox 97

8.8
CVE-2022-0566

It may be possible for an attacker to craft an email message that causes Thunderbird to perform an out-of-bounds write o

7.8
CVE-2022-0517

Mozilla VPN can load an OpenSSL configuration file from an unsecured directory. A user or attacker with limited privileg

8.8
CVE-2022-0511

Mozilla developers and community members Gabriele Svelto, Sebastian Hengst, Randell Jesup, Luan Herrera, Lars T Hansen,

4.3
CVE-2021-4221

If a domain name contained a RTL character, it would cause the domain to be rendered to the right of the path. This coul

10.0
CVE-2021-4140

It was possible to construct specific XSLT markup that would be able to bypass an iframe sandbox. This vulnerability aff

9.8
CVE-2021-4129

Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, a

6.5
CVE-2021-4128

When transitioning in and out of fullscreen mode, a graphics object was not correctly protected; resulting in memory cor

9.8
CVE-2021-4127

An out of date graphics library (Angle) likely contained vulnerabilities that could potentially be exploited. This vulne

6.5
CVE-2021-4126

When receiving an OpenPGP/MIME signed email message that contains an additional outer MIME message layer, for example a

8.8
CVE-2020-15685

During the plaintext phase of the STARTTLS connection setup, protocol commands could have been injected and evaluated wi

7.6
CVE-2020-15679

An OAuth session fixation vulnerability existed in the VPN login flow, where an attacker could craft a custom login URL,

3.5
CVE-2022-4066

A vulnerability was found in davidmoreno onion. It has been rated as problematic. Affected by this issue is the function

7.5
CVE-2022-3479

A vulnerability found in nss. By this security vulnerability, nss client auth crash without a user certificate in the da

7.5
CVE-2022-21190

This affects the package convict before 6.2.3. This is a bypass of [CVE-2022-22143](https://security.snyk.io/vuln/SNYK-J

7.4
CVE-2022-29167

Hawk is an HTTP authentication scheme providing mechanisms for making authenticated HTTP requests with partial cryptogra

5.3
CVE-2021-4138

Improved Host header checks to reject requests not sent to a well-known local hostname or IP, or the server-specified ho

7.5
CVE-2022-22143

The package convict before 6.2.2 are vulnerable to Prototype Pollution via the convict function due to missing validatio

4.3
CVE-2021-43546

It was possible to recreate previous cursor spoofing attacks against users with a zoomed native cursor. This vulnerabili

6.5
CVE-2021-43545

Using the Location API in a loop could have caused severe application hangs and crashes. This vulnerability affects Thun

6.1
CVE-2021-43544

When receiving a URL through a SEND intent, Firefox would have searched for the text, but subsequent usages of the addre

6.1
CVE-2021-43543

Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additio

6.5
CVE-2021-43542

Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages for loading ext

6.5
CVE-2021-43541

When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly esca

6.5
CVE-2021-43540

WebExtensions with the correct permissions were able to create and install ServiceWorkers for third-party websites that

8.8
CVE-2021-43539

Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within t

4.3
CVE-2021-43538

By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that ha

8.8
CVE-2021-43537

An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a po

Frequently Asked Questions

How many CVEs affect Mozilla?

Mozilla has 7,140 CVE records in our database, including 872 critical and 3343 high severity vulnerabilities. 11 of these are listed in CISA's Known Exploited Vulnerabilities catalog.

What are the most severe Mozilla vulnerabilities?

Mozilla has 872 critical severity (CVSS 9.0+) and 3343 high severity (CVSS 7.0-8.9) vulnerabilities. 11 vulnerabilities are confirmed as actively exploited in the wild.

How can I scan for Mozilla vulnerabilities?

CyberStrike's AI-powered security agents automatically detect vulnerabilities in Mozilla products across your infrastructure. The platform provides continuous pentesting, DAST scanning, and real-time vulnerability monitoring with actionable remediation guidance.

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