|CVSS Meta Temp Score|
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|CTI Interest Score|
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A vulnerability was found in Google Chrome (Web Browser). It has been rated as critical. Affected by this issue is some unknown processing of the component V8. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-122. Impacted is confidentiality, integrity, and availability. CVE summarizes:
Heap buffer overflow in V8 in Google Chrome prior to 88.0.4324.182 allowed a remote attacker to potentially exploit heap corruption via a crafted script.
The weakness was presented 02/23/2021. The advisory is shared for download at crbug.com. This vulnerability is handled as CVE-2021-21156 since 12/21/2020. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 03/04/2021). It is expected to see the exploit prices for this product increasing in the near future.
Upgrading to version 88.0.4324.182 eliminates this vulnerability.
CVSSv3VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 8.8
NVD Vector: 🔒
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
NVD Base Score: 🔒
ExploitingClass: Memory corruption
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceThreat: 🔍
0-Day Time: 🔒
Upgrade: Chrome 88.0.4324.182
Timeline12/21/2020 CVE assigned
02/23/2021 +64 days Advisory disclosed
02/23/2021 +0 days VulDB entry created
03/04/2021 +9 days VulDB last update
CVE: CVE-2021-21156 (🔒)
EntryCreated: 02/23/2021 08:14 AM
Updated: 03/04/2021 01:53 PM
Changes: (18) vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss2_nvd_basescore vulnerability_cvss3_nvd_basescore
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