firefox esr vulnerabilities and fixes

Recent CVEs affecting firefox esr, with upgrade or downgrade steps. 46 tracked.

firefox esr has 46 tracked vulnerabilities, 3 critical. A fixed release or vendor patch exists for 46. Most recent: 2023-08-01. Highest priority: CVE-2023-29531 (score 58/100).

• CVE-2023-29531 CRITICAL 9.8 UPGRADE UPGRADE An attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory corruption an
• CVE-2023-34416 CRITICAL 9.8 UPGRADE UPGRADE Memory safety bugs present in Firefox 113, Firefox ESR 102.11, and Thunderbird 102.12
• CVE-2023-37202 HIGH 8.8 UPGRADE UPGRADE Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be s
• CVE-2023-37211 HIGH 8.8 UPGRADE UPGRADE Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12
• CVE-2023-25734 HIGH 8.1 UPGRADE UPGRADE After downloading a Windows <code>.url</code> shortcut from the local filesystem, an attacker could supply a r
• CVE-2023-0767 HIGH 8.8 UPGRADE UPGRADE An attacker could construct a PKCS 12 cert bundle in such a way that could allow for arbitrary memory writes v
• CVE-2023-23605 HIGH 8.8 UPGRADE UPGRADE Mozilla developers and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 108 and Firefox
• CVE-2023-25732 HIGH 8.8 UPGRADE UPGRADE When encoding data from an <code>inputStream</code> in <code>xpcom</code> the size of the input being encoded
• CVE-2023-25735 HIGH 8.8 UPGRADE UPGRADE Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be s
• CVE-2023-25737 HIGH 8.8 UPGRADE UPGRADE An invalid downcast from <code>nsTextNode</code> to <code>SVGElement</code> could have lead to undefined behav
• CVE-2023-25739 HIGH 8.8 UPGRADE UPGRADE Module load requests that failed were not being checked as to whether or not they were cancelled causing a use
• CVE-2023-28176 HIGH 8.8 UPGRADE UPGRADE Memory safety bugs present in Firefox 110 and Firefox ESR 102.8
• CVE-2023-29550 HIGH 8.8 UPGRADE UPGRADE Memory safety bugs present in Firefox 111 and Firefox ESR 102.9
• CVE-2023-25728 MEDIUM 6.5 UPGRADE UPGRADE The <code>Content-Security-Policy-Report-Only</code> header could allow an attacker to leak a child iframe's u
• CVE-2023-29535 MEDIUM 6.5 UPGRADE UPGRADE Following a Garbage Collector compaction, weak maps may have been accessed before they were correctly traced
• CVE-2023-29548 MEDIUM 6.5 UPGRADE UPGRADE A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization result
• CVE-2023-32206 MEDIUM 6.5 UPGRADE UPGRADE An out-of-bound read could have led to a crash in the RLBox Expat driver
• CVE-2023-37208 HIGH 7.8 UPGRADE UPGRADE When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code
• CVE-2023-1945 MEDIUM 6.5 UPGRADE UPGRADE Unexpected data returned from the Safe Browsing API could have led to memory corruption and a potentially expl
• CVE-2023-23599 MEDIUM 6.5 UPGRADE UPGRADE When copying a network request from the developer tools panel as a curl command the output was not being prope
• CVE-2023-25742 MEDIUM 6.5 UPGRADE UPGRADE When importing a SPKI RSA public key as ECDSA P-256, the key would be handled incorrectly causing the tab to c
• CVE-2023-25752 MEDIUM 6.5 UPGRADE UPGRADE When accessing throttled streams, the count of available bytes needed to be checked in the calling function to
• CVE-2023-29545 MEDIUM 6.5 UPGRADE UPGRADE Similar to CVE-2023-28163, this time when choosing 'Save Link As', suggested filenames containing environment
• CVE-2023-25730 MEDIUM 5.4 UPGRADE UPGRADE A background script invoking <code>requestFullscreen</code> and then blocking the main thread could force the
• CVE-2023-28164 MEDIUM 6.5 UPGRADE UPGRADE Dragging a URL from a cross-origin iframe that was removed during the drag could have led to user confusion an
• CVE-2023-32212 MEDIUM 4.3 UPGRADE UPGRADE An attacker could have positioned a `datalist` element to obscure the address bar
• CVE-2023-34414 LOW 3.1 UPGRADE UPGRADE The error page for sites with invalid TLS certificates was missing the activation-delay Firefox uses to protec
• CVE-2023-29542 CRITICAL 9.8 UPGRADE UPGRADE A newline in a filename could have been used to bypass the file extension security mechanisms that replace mal
• CVE-2023-28162 HIGH 8.8 UPGRADE UPGRADE While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type
• CVE-2023-32214 HIGH 7.5 UPGRADE UPGRADE Protocol handlers `ms-cxh` and `ms-cxh-full` could have been leveraged to trigger a denial of service. *Note:
• CVE-2023-25744 HIGH 8.8 UPGRADE UPGRADE Mmemory safety bugs present in Firefox 109 and Firefox ESR 102.7
• CVE-2023-25746 HIGH 8.8 UPGRADE UPGRADE Memory safety bugs present in Firefox ESR 102.7
• CVE-2023-29536 HIGH 8.8 UPGRADE UPGRADE An attacker could cause the memory manager to incorrectly free a pointer that addresses attacker-controlled me
• CVE-2023-29539 HIGH 8.8 UPGRADE UPGRADE When handling the filename directive in the Content-Disposition header, the filename would be truncated if the
• CVE-2023-32207 HIGH 8.8 UPGRADE UPGRADE A missing delay in popup notifications could have made it possible for an attacker to trick a user into granti
• CVE-2023-32213 HIGH 8.8 UPGRADE UPGRADE When reading a file, an uninitialized value could have been used as read limit
• CVE-2023-37207 MEDIUM 6.5 UPGRADE UPGRADE A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external
• CVE-2023-3600 HIGH 8.8 UPGRADE UPGRADE During the worker lifecycle, a use-after-free condition could have occurred, which could have led to a potenti
• CVE-2023-28163 MEDIUM 6.5 UPGRADE UPGRADE When downloading files through the Save As dialog on Windows with suggested filenames containing environment v
• CVE-2023-25751 MEDIUM 6.5 UPGRADE UPGRADE Sometimes, when invalidating JIT code while following an iterator, the newly generated code could be overwritt
• CVE-2023-32211 MEDIUM 6.5 UPGRADE UPGRADE A type checking bug would have led to invalid code being compiled
• CVE-2023-4052 MEDIUM 6.5 UPGRADE UPGRADE The Firefox updater created a directory writable by non-privileged users
• CVE-2023-23598 MEDIUM 6.5 UPGRADE UPGRADE Due to the Firefox GTK wrapper code's use of text/plain for drag data and GTK treating all text/plain MIMEs co
• CVE-2023-25738 MEDIUM 6.5 UPGRADE UPGRADE Members of the <code>DEVMODEW</code> struct set by the printer device driver weren't being validated and could
• CVE-2023-23601 MEDIUM 6.5 UPGRADE UPGRADE Navigations were being allowed when dragging a URL from a cross-origin iframe into the same tab which could le
• CVE-2023-29532 MEDIUM 5.5 UPGRADE UPGRADE A local attacker can trick the Mozilla Maintenance Service into applying an unsigned update file by pointing t

FAQ

How do I fix firefox esr vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is firefox esr being exploited right now?

None of the tracked firefox esr CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which firefox esr CVE should I patch first?

CVE-2023-29531 currently ranks highest (58/100): An attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory corruption an.

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