Mozilla Firefox up to 101 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$5k-$25k1.36

Summaryinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 101. The impacted element is an unknown function. Executing a manipulation can lead to memory corruption. This vulnerability is handled as CVE-2022-34484. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 101 (Web Browser). It has been declared as critical. This vulnerability affects an unknown function. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The Mozilla Fuzzing Team reported potential vulnerabilities present in Thunderbird 91.10. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

The weakness was released 06/28/2022 with Mozilla as Memory safety bugs fixed in Firefox 102 and Firefox ESR 91.11 as confirmed advisory (Website). The advisory is available at bugzilla.mozilla.org. The advisory contains:

The Mozilla Fuzzing Team reported potential vulnerabilities present in Firefox 101 and Firefox ESR 91.10. Some of these bugs showed evidence of JavaScript prototype or memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
This vulnerability was named CVE-2022-34484. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 06/13/2026).

The vulnerability scanner Nessus provides a plugin with the ID 246881 (Linux Distros Unpatched Vulnerability : CVE-2022-34484), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 102 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (246881) and EUVD (EUVD-2022-37439). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 246881
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-34484

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Firefox 102

Timelineinfo

06/24/2022 🔍
06/28/2022 +4 days 🔍
06/28/2022 +0 days 🔍
09/30/2022 +94 days 🔍
06/13/2026 +1352 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Memory safety bugs fixed in Firefox 102 and Firefox ESR 91.11
Organization: Mozilla
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-34484 (🔍)
GCVE (CVE): GCVE-0-2022-34484
GCVE (VulDB): GCVE-100-209986
EUVD: 🔍

Entryinfo

Created: 09/30/2022 10:38
Updated: 06/13/2026 02:56
Changes: 09/30/2022 10:38 (18), 09/30/2022 10:41 (27), 10/26/2022 17:12 (1), 04/16/2025 05:58 (27), 08/10/2025 18:12 (2), 06/13/2026 02:56 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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