Microsoft Edge memory corruption

Summaryinfo

A vulnerability labeled as critical has been found in Microsoft Edge. Affected by this issue is some unknown functionality. Executing a manipulation can lead to memory corruption. The identification of this vulnerability is CVE-2019-1193. The attack may be launched remotely. There is no exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability has been found in Microsoft Edge (Web Browser) (the affected version unknown) and classified as critical. This vulnerability affects an unknown part. 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:

A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory. The vulnerability could corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, the attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. An attacker could host a specially crafted website that is designed to exploit the vulnerability through Microsoft browsers, and then convince a user to view the website. The attacker could also take advantage of compromised websites, or websites that accept or host user-provided content or advertisements, by adding specially crafted content that could exploit the vulnerability. In all cases, however, an attacker would have no way to force users to view the attacker-controlled content. Instead, an attacker would have to convince users to take action, typically via an enticement in email or instant message, or by getting them to open an email attachment. The security update addresses the vulnerability by modifying how Microsoft browsers handle objects in memory.

The weakness was shared 08/13/2019 as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The vendor cooperated in the coordination of the public release. This vulnerability was named CVE-2019-1193 since 11/26/2018. The attack can be initiated remotely. Additional levels of successful authentication are needed for exploitation. 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 02/21/2026). The advisory points out:

A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory. The vulnerability could corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, the attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entry VDB-139953 is related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Web Browser

Vendor

• Microsoft

Name

• Edge

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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Entryinfo

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

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