Vendor Mozilla


The analysis of the timeline helps to identify the required approach and handling of single vulnerabilities and vulnerability collections. This overview makes it possible to see less important slices and more severe hotspots at a glance. Initiating immediate vulnerability response and prioritizing of issues is possible.

Type »

The moderation team is working with the threat intelligence team to categorize software that is affected by security vulnerabilities. This helps to illustrate the assignment of these categories to determine the most affected software types.

Product »

Grouping vulnerabilities by products helps to get an overview. This makes it possible to determine an homogeneous landscape or the most important hotspots in heterogeneous landscapes.

Remediation »

Vendors and researchers are eager to find countermeasures to mitigate security vulnerabilities. These can be distinguished between multiple forms and levels of remediation which influence risks differently.

Exploitability »

Researcher and attacker which are looking for security vulnerabilities try to exploit them for academic purposes or personal gain. The level and quality of exploitability can be distinguished to determine simplicity and strength of attacks.

Access Vector »

The approach a vulnerability it becomes important to use the expected access vector. This is typically via the network, local, or physically even.

Authentication »

To exploit a vulnerability a certail level of authentication might be required. Vulnerabilities without such a requirement are much more popular.

User Interaction »

Some attack scenarios require some user interaction by a victim. This is typical for phishing, social engineering and cross site scripting attacks.

C3BM Index »

Our unique C3BM Index (CVSSv3 Base Meta Index) cumulates the CVSSv3 Meta Base Scores of all entries over time. Comparing this index to the amount of disclosed vulnerabilities helps to pinpoint the most important events.

CVSSv3 Base »

The Common Vulnerability Scoring System (CVSS) is an industry standard to define the characteristics and impacts of security vulnerabilities. The base score represents the intrinsic aspects that are constant over time and across user environments. Our unique meta score merges all available scores from different sources to aggregate to the most reliable result.

CVSSv3 Temp »

The Common Vulnerability Scoring System (CVSS) uses temp scores to reflect the characteristics of a vulnerability that may change over time but not across user environments. This includes reporting confidence, exploitability and remediation levels. We do also provide our unique meta score for temp scores, even though other sources rarely publish them.

VulDB »

The moderation team is always defining the base vector and base score for an entry. These and all other available scores are used to generate the meta score.


The National Vulnerability Database (NVD) is also defining CVSS vectors and scores. These are usually not complete and might differ from VulDB scores.

Vendor »

Some vendors are willing to publish their own CVSS vectors and scores for vulnerabilities in their products. The coverage varies from vendor to vendor.

Research »

There are sometimes also security researcher which provide their own CVSS vectors and scores for vulnerabilities they have found and published.

Exploit 0-day »

The moderation team is working with the threat intelligence team to determine prices for exploits. Our unique algorithm is used to identify the 0-day prices for an exploit, before it got distributed or became public. Calculated prices are aligned to prices disclosed by vulnerability broker and compared to prices we see on exploit markets.

Exploit Today »

The 0-day prices do not consider time-relevant factors. The today price does reflect price impacts like disclosure of vulnerability details, alternative exploits, availability of countermeasures. These dynamic aspects might decrease the exploit prices over time. Under certain circumstances this happens very fast.

Exploit Market Volume »

Our unique calculation of exploit prices makes it possible to forecast the expected exploit market volume. The calculated prices for all possible 0-day expoits are cumulated for this task. Comparing the volume to the amount of disclosed vulnerabilities helps to pinpoint the most important events.

🔴 CTI Activities »

Our unique Cyber Threat Intelligence aims to determine the ongoing research of actors to anticipiate their acitivities. Observing exploit markets on the Darknet, discussions of vulnerabilities on mailinglists, and exchanges on social media makes it possible to identify planned attacks. Monitored actors and activities are classified whether they are offensive or defensive. They are also weighted as some actors are well-known for certain products and technologies. And some of their disclosures might contain more or less details about technical aspects and personal context. The world map highlights active actors in real-time.

Affected Products (26): Bleach (2), Bonsai (4), Browser (1), Bugzilla (138), Camino (1), Durian Web Application Server (1), Firefox (2159), Firefox ESR (157), Firefox OS (9), FirefoxOS (1), Firfox ESR (1), IoT Gateway (2), Libxul (1), Mac OS X (1), Necko (2), Network Security Services (19), Prism (2), Products (1), SeaMonkey (25), Seamonkey (2), Suite (2), Thunderbird (461), Thunderbird ESR (6), Zamboni (1), before (1), website (1)

Link to Vendor Website:

03/31/20217.57.2Mozilla Firefox memory corruptionWeb BrowserNot DefinedOfficial Fix0.07CVE-2021-23988
03/31/20217.57.2Mozilla Firefox/Firefox ESR/Thunderbird memory corruptionWeb BrowserNot DefinedOfficial Fix0.04CVE-2021-23987
03/31/20215.75.5Mozilla Firefox Extension information disclosureWeb BrowserNot DefinedOfficial Fix0.05CVE-2021-23986
03/31/20214.84.6Mozilla Firefox Devtools Remote Debugging information disclosureWeb BrowserNot DefinedOfficial Fix0.06CVE-2021-23985
03/31/20216.46.1Mozilla Firefox/Firefox ESR/Thunderbird Popup Window clickjackingWeb BrowserNot DefinedOfficial Fix0.00CVE-2021-23984
03/31/20216.46.1Mozilla Firefox CSS Rule memory corruptionWeb BrowserNot DefinedOfficial Fix0.87CVE-2021-23983
03/31/20215.45.1Mozilla Firefox/Firefox ESR/Thunderbird WebRTC Connection information disclosureWeb BrowserNot DefinedOfficial Fix1.16CVE-2021-23982
03/31/20217.26.8Mozilla Firefox/Firefox ESR/Thunderbird WebGL memory corruptionWeb BrowserNot DefinedOfficial Fix0.04CVE-2021-23981
02/26/20216.36.0Mozilla Firefox memory corruptionWeb BrowserNot DefinedOfficial Fix0.05CVE-2021-23979
02/26/20216.36.0Mozilla Firefox/Firefox ESR/Thunderbird memory corruptionWeb BrowserNot DefinedOfficial Fix0.03CVE-2021-23978
02/26/20216.36.0Mozilla Firefox memory corruptionWeb BrowserNot DefinedOfficial Fix0.00CVE-2021-23965
02/26/20216.36.0Mozilla Firefox/Firefox ESR/Thunderbird memory corruptionWeb BrowserNot DefinedOfficial Fix0.06CVE-2021-23964
02/26/20213.93.7Mozilla Firefox toctouWeb BrowserNot DefinedOfficial Fix0.22CVE-2021-23977
02/26/20217.26.8Mozilla Firefox Fullscreen improper restriction of rendered ui layersWeb BrowserNot DefinedOfficial Fix0.62CVE-2021-23976
02/26/20214.94.7Mozilla Firefox Developer Page allocation of resourcesWeb BrowserNot DefinedOfficial Fix1.03CVE-2021-23975
02/26/20215.24.9Mozilla Firefox DOMParser API cross site scriptingWeb BrowserNot DefinedOfficial Fix0.00CVE-2021-23974
02/26/20215.45.1Mozilla Firefox/Firefox ESR/Thunderbird Decoding unknown vulnerabilityWeb BrowserNot DefinedOfficial Fix0.05CVE-2021-23973
02/26/20216.35.7Mozilla Firefox HTTP Authentication improper restriction of rendered ui layersWeb BrowserProof-of-ConceptOfficial Fix0.05CVE-2021-23972
02/26/20215.45.1Mozilla Firefox Referer Policy information disclosureWeb BrowserNot DefinedOfficial Fix0.04CVE-2021-23971
02/26/20214.64.4Mozilla Firefox Shared Jump Table assertionWeb BrowserNot DefinedOfficial Fix0.07CVE-2021-23970
02/26/20214.34.1Mozilla Firefox/Firefox ESR/Thunderbird Content Security Policy information disclosureWeb BrowserNot DefinedOfficial Fix0.06CVE-2021-23969
02/26/20215.35.1Mozilla Firefox/Firefox ESR/Thunderbird Content Security Policy unknown vulnerabilityWeb BrowserNot DefinedOfficial Fix0.05CVE-2021-23968
02/26/20215.35.1Mozilla Firefox WebRTC Share permissionWeb BrowserNot DefinedOfficial Fix0.05CVE-2021-23963
02/26/20216.56.2Mozilla Firefox RowCountChanged denial of serviceWeb BrowserNot DefinedOfficial Fix0.06CVE-2021-23962
02/26/20214.34.1Mozilla Firefox information disclosureWeb BrowserNot DefinedOfficial Fix0.03CVE-2021-23961
02/26/20216.56.2Mozilla Firefox/Firefox ESR/Thunderbird Garbage Collector denial of serviceWeb BrowserNot DefinedOfficial Fix0.06CVE-2021-23960
02/26/20215.24.9Mozilla Firefox Error Page cross site scriptingWeb BrowserNot DefinedOfficial Fix0.07CVE-2021-23959
02/26/20215.45.1Mozilla Firefox Screen Sharing information disclosureWeb BrowserNot DefinedOfficial Fix0.00CVE-2021-23958
02/26/20216.86.5Mozilla Firefox intent Scheme sandboxWeb BrowserNot DefinedOfficial Fix0.05CVE-2021-23957
02/26/20216.46.1Mozilla Firefox File Picker unrestricted uploadWeb BrowserNot DefinedOfficial Fix0.05CVE-2021-23956
02/26/20215.24.9Mozilla Firefox Pointer Lock clickjackingWeb BrowserNot DefinedOfficial Fix0.18CVE-2021-23955
02/26/20217.57.2Mozilla Firefox/Firefox ESR/Thunderbird Javascript Switch memory corruptionWeb BrowserNot DefinedOfficial Fix0.22CVE-2021-23954
02/26/20214.34.1Mozilla Firefox/Firefox ESR/Thunderbird PDF Reader unknown vulnerabilityWeb BrowserNot DefinedOfficial Fix0.36CVE-2021-23953
01/13/20217.37.0Mozilla Thunderbird SCTP Packet use after freeMail Client SoftwareNot DefinedOfficial Fix0.05CVE-2020-16044
01/07/20216.36.3Mozilla Firefox memory corruptionWeb BrowserNot DefinedOfficial Fix0.13CVE-2020-35114
01/07/20216.36.3Mozilla Firefox/Firefox ESR/Thunderbird memory corruptionWeb BrowserNot DefinedOfficial Fix0.08CVE-2020-35113
01/07/20215.05.0Mozilla Firefox/Firefox ESR/Thunderbird Extension uncontrolled search pathWeb BrowserNot DefinedOfficial Fix0.06CVE-2020-35112
01/07/20214.34.3Mozilla Firefox/Firefox ESR/Thunderbird Proxy information disclosureWeb BrowserNot DefinedOfficial Fix0.07CVE-2020-35111
01/07/20214.34.3Mozilla Firefox Address Bar clickjackingWeb BrowserNot DefinedOfficial Fix0.07CVE-2020-26979
01/07/20214.34.3Mozilla Firefox/Firefox ESR/Thunderbird information disclosureWeb BrowserNot DefinedOfficial Fix0.07CVE-2020-26978
01/07/20214.34.3Mozilla Firefox URL Bar clickjackingWeb BrowserNot DefinedOfficial Fix0.07CVE-2020-26977
01/07/20216.36.3Mozilla Firefox Service Worker Remote Code ExecutionWeb BrowserNot DefinedOfficial Fix0.07CVE-2020-26976
01/07/20215.35.3Mozilla Firefox session fixiationWeb BrowserNot DefinedOfficial Fix0.00CVE-2020-26975
01/07/20216.36.3Mozilla Firefox/Firefox ESR/Thunderbird Table Wrapper heap-based overflowWeb BrowserNot DefinedOfficial Fix0.08CVE-2020-26974
01/07/20215.55.5Mozilla Firefox/Firefox ESR/Thunderbird CSS unknown vulnerabilityWeb BrowserNot DefinedOfficial Fix0.05CVE-2020-26973
01/07/20216.36.3Mozilla Firefox IPC Actor use after freeWeb BrowserNot DefinedOfficial Fix0.06CVE-2020-26972
01/07/20216.36.3Mozilla Firefox/Firefox ESR/Thunderbird Video Driver heap-based overflowWeb BrowserNot DefinedOfficial Fix0.10CVE-2020-26971
12/09/20207.57.2Mozilla Firefox memory corruptionWeb BrowserNot DefinedOfficial Fix0.05CVE-2020-26969
12/09/20207.57.2Mozilla Firefox/Thunderbird memory corruptionWeb BrowserNot DefinedOfficial Fix0.05CVE-2020-26968
12/09/20206.05.7Mozilla Firefox Screenshot injectionWeb BrowserNot DefinedOfficial Fix0.05CVE-2020-26967

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