Mozilla Firefox up to 103 Javascript memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.2$5k-$25k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 103. It has been declared as critical. The impacted element is an unknown function of the component Javascript. Such manipulation leads to memory corruption. This vulnerability is referenced as CVE-2022-38475. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 103 (Web Browser). Affected by this issue is some unknown processing of the component Javascript. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An attacker could have written a value to the first element in a zero-length JavaScript array. Although the array was zero-length, the value was not written to an invalid memory address. This vulnerability affects Firefox < 104.

The weakness was published 08/23/2022 by Christian Holler as Bug 1773266 as confirmed advisory (Website). The advisory is available at bugzilla.mozilla.org. The advisory contains:

An attacker could have written a value to the first element in a zero-length JavaScript array. Although the array was zero-length, the value was not written to an invalid memory address.
This vulnerability is handled as CVE-2022-38475. 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 06/22/2026).

Upgrading to version 104 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2022-41058). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Firefox 104

Timelineinfo

08/19/2022 🔍
08/23/2022 +4 days 🔍
08/23/2022 +0 days 🔍
09/29/2022 +37 days 🔍
06/22/2026 +1362 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1773266
Researcher: Christian Holler
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-38475 (🔍)
GCVE (CVE): GCVE-0-2022-38475
GCVE (VulDB): GCVE-100-209810
EUVD: 🔍

Entryinfo

Created: 09/29/2022 14:52
Updated: 06/22/2026 16:37
Changes: 09/29/2022 14:52 (16), 09/29/2022 14:53 (1), 09/29/2022 14:56 (29), 10/25/2022 14:11 (1), 04/16/2025 05:58 (27), 06/22/2026 16:37 (1)
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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