Known Exploited Vulnerabilities: 2023 List

Celeste Mottesi May 31, 2023
- 9 min read

With vulnerabilities on the rise since 2017, staying oblivious to cybersecurity is no longer an option. A strong Vulnerability Management strategy has to be proactive, and in order to help you with that, we've created this list of known exploited vulnerabilities in 2023.

The Cybersecurity and Infrastructure Security Agency (CISA) is at the forefront of safeguarding critical infrastructure and combating cyber threats. It has a complete catalog of Common Vulnerabilities and Exposures (CVE), where you can find a brief overview of every discovered security breach that affects a wide range of vendors.

In this article, we'll focus on known vulnerabilities identified by CISA thus far in 2023, focusing on major operating systems and software providers. Specifically, we will delve into vulnerabilities affecting Google, Microsoft, Apple, and Linux, shedding light on their potential risks and emphasizing the significance of Patch Management strategies.



List of known exploited vulnerabilities in 2023

Google vulnerabilities

Let's start with Google vulnerabilities. So far, the company has addressed the following CVEs:

  • CVE-2022-3038 -  Use-after-free vulnerability discovered in the Network Service component of Google Chrome. By exploiting this vulnerability, a remote attacker can potentially trigger heap corruption by tricking a user into visiting a specially crafted HTML page.
  • CVE- 2023-2033 - Chromium's open-source JavaScript engine V8 in Google Chrome browsers was affected by a type confusion. The vendor patched the issue from version 112.0.5615.121. An attacker could "exploit heap corruption via a crafted HTML page" if exploited.
  • CVE-2023-2136 - A high severity vulnerability in the Skia graphics library that is used by Google Chrome and Microsoft Edge. It affects Google Chrome versions prior to 112.0.5615.137 and Microsoft Edge versions prior to 112.0.1722.58.
  • CVE-2023-3079

Microsoft vulnerabilities

As for Microsoft vulnerabilities, CISA has issued the following:

  • CVE-2013-3163
  • CVE-2019-1388
  • CVE-2021-29336
  • CVE-2023-2136 - Integer overflow in Skia in Google Chrome browsers that allowed attackers to perform a sandbox escape via a crafted HTML page. The vulnerability was patched on version 112.0.5615.137.
  • CVE-2023-21674 - Vulnerability that affected the Advanced Local Procedure Call (ALPC) interface of Microsoft Windows operating systems. Classified as an elevation of privilege vulnerability, it was patched along with Windows 10 version 21H1 (May 2021 Update), Windows 10 version 20H2 (October 2020 Update), and Windows Server version 20H2 (October 2020 Update).
  • CVE-2023-21715 - A security flaw that affects Microsoft Publisher. It allows attackers to bypass a critical security feature known as Office macro policies. The vulnerability was patched by the vendor.
  • CVE-2023-21716 - Remote code execution vulnerability discovered in Microsoft Office. The vendor issued a patch to prevent attackers from tricking users into opening a malicious RTF document. 
  • CVE-2023-21768 - The Ancillary Function Driver (AFD) of the Windows operating system had a flaw that allowed attackers to elevate their privileges on a targeted system. The vendor released a security update to update the exploit.
  • CVE-2023-21823 - Attackers could execute arbitrary code in an elevated context and affect the graphics component of Microsoft Windows. The vendor released a security patch to solve the issue.
  • CVE-2023-23376 - Elevation of privilege vulnerability that affected the Common Log File System (CLFS) driver in Windows operating systems. The patch was included in the April 2023 Security Updates, released on April 11, 2023. 
  • CVE-2023-23397 - Security vulnerability that affected Microsoft Outlook and allowed an attacker to gain elevated privileges on a targeted system. The vendor released a patch to address it.
  • CVE-2023-24880 - A critical vulnerability that targets the Windows SmartScreen feature. It allows attackers to craft malicious files that evade the MOTW defenses. Organizations and users must apply the latest security patches released by Microsoft.
  • CVE-2023-28252 - Vulnerability that affects the Windows Common Log File System (CLFS) and allows attackers to gain SYSTEM privileges on targeted machines.
  • CVE-2023-41080 - High-severity privilege escalation flaw that affected Microsoft Exchange Server 2013, 2016, and 2019. The latest versions that include the patch are CU24, CU15, and CU4.
  • CVE-2023-44698

Apple vulnerabilities

The following are the 2023 vulnerabilities that affected Apple products:

  • CVE-2019-8526
  • CVE-2021-30900
  • CVE-2022-42475 - Heap-based buffer overflow vulnerability found in FortiOS SSL-VPN that allowed attackers to execute arbitrary code or cause a denial of service (DoS) condition.
  • CVE-2023-23529 - Type of confusion issue in the WebKit browser engine patched by the vendor shortly after its discovery.
  • CVE-2023-28204 - It is WebKit zero-day vulnerability  attackers that might be able to access sensitive data and is addressed in Apple's Rapid Security Response update. 
  • CVE-2023-28205 - This zero-day vulnerability affects macOS, iOS, and iPadOS. 
  • Apple has released security updates for macOS version 13.3.1 iOS and iPadOS version 16.4.1.
  • CVE-2023-28206 -  Security vulnerability that affects Apple devices, specifically macOS, iOS, and iPadOS.  Apple promptly responded by releasing security updates to address the issues.
  • CVE-2023-32373 - It is a WebKit vulnerability which can result in the disclosure of sensitive information. Apple has addressed in its recent security updates.
  • CVE-2023-32409 - Zero-day vulnerability that can allow a remote attacker to "break out of Web Content sandbox." It was addressed by the vendor in recent updates.

Linux vulnerabilities

And lastly, these are the known vulnerabilities regarding the Linux operating system:

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