# What is CVE-2023-42483? > CVE-2023-42483 is a medium-severity flaw (CVSS 4.7) in Exynos 1080 from Samsung, published on 13 December 2023. It is not on the list of flaws known to be exploited today. The latest forecast puts its chance of use in the next 30 days at 0.1%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.edgeprotect.io/what-is/cve-2023-42483 ## At a glance - **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle. - **EdgeProtect risk score:** 17 out of 100 (Info); action: Track. Kept up to date as the evidence changes. - **Severity:** Medium (CVSS 4.7 out of 10) - **Known to be exploited:** No, not on the list of flaws known to be exploited today - **Chance of use in the next 30 days:** 0.1% (latest exploit-likelihood forecast) - **Published:** 13 December 2023 - **Record last updated:** 15 December 2023 - **Main product:** Exynos 1080 from Samsung - **Affected products:** 14 ## What is CVE-2023-42483? In plain terms An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can take it offline. ### The official description A TOCTOU race condition in Samsung Mobile Processor Exynos 9820, Exynos 980, Exynos 1080, Exynos 2100, Exynos 2200, Exynos 1280, and Exynos 1380 can cause unexpected termination of a system. ### What kind of flaw is it? - CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition ### How an attack on it works - Where an attacker can be: Already on the device - How hard it is to pull off: Hard: conditions must line up - Login needed first: An ordinary user account - Does someone have to click: No, nobody has to do anything - What an attacker gets: Can take it offline Severity vector: `CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H` ## Is CVE-2023-42483 being exploited? Not that we know of It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.1%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.1%, 0.1%, 0.1%, 0.1%, 0.1%, 0.1%, 0.1%. ### Timeline - 13 December 2023: Published - 15 December 2023: Record last updated ### How EdgeProtect ranks it CVE-2023-42483 scores **17 out of 100 (Info)**, with the action "Track". Every published flaw gets a risk score from 0 to 100, kept up to date as the evidence changes. Four things go into the score, from the one that counts most to the ones that count less: - Evidence it is being exploited: biggest factor - How severe it is: strong factor - How widely exposed it is: key context - Real threat activity around it: key context 85 and above is Critical. Anything confirmed as exploited is always marked for an emergency patch, whatever its score. When this flaw matches software you track, it lands in your list with its score and the reasons behind it. ## Who is affected by CVE-2023-42483? The published record lists 14 products. - [Exynos 1080](https://www.edgeprotect.io/product/samsung/exynos_1080) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Hardware): version not specified - [Exynos 1080 Firmware](https://www.edgeprotect.io/product/samsung/exynos_1080_firmware) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Operating system): version not specified - [Exynos 1280](https://www.edgeprotect.io/product/samsung/exynos_1280) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Hardware): version not specified - [Exynos 1280 Firmware](https://www.edgeprotect.io/product/samsung/exynos_1280_firmware) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Operating system): version not specified - [Exynos 1380](https://www.edgeprotect.io/product/samsung/exynos_1380) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Hardware): version not specified - [Exynos 1380 Firmware](https://www.edgeprotect.io/product/samsung/exynos_1380_firmware) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Operating system): version not specified - [Exynos 2100](https://www.edgeprotect.io/product/samsung/exynos_2100) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Hardware): version not specified - [Exynos 2100 Firmware](https://www.edgeprotect.io/product/samsung/exynos_2100_firmware) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Operating system): version not specified - [Exynos 2200](https://www.edgeprotect.io/product/samsung/exynos_2200) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Hardware): version not specified - [Exynos 2200 Firmware](https://www.edgeprotect.io/product/samsung/exynos_2200_firmware) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Operating system): version not specified - [Exynos 980](https://www.edgeprotect.io/product/samsung/exynos_980) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Hardware): version not specified - [Exynos 980 Firmware](https://www.edgeprotect.io/product/samsung/exynos_980_firmware) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Operating system): version not specified - [Exynos 9820](https://www.edgeprotect.io/product/samsung/exynos_9820) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Hardware): version not specified - [Exynos 9820 Firmware](https://www.edgeprotect.io/product/samsung/exynos_9820_firmware) by [Samsung](https://www.edgeprotect.io/vendors/samsung) (Operating system): version not specified ## How do I fix CVE-2023-42483? 1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? EdgeProtect can work it out from your public website, or you can pick it from a list. 2. **Apply the vendor’s fix.** Install the update named in the vendor’s advisory. We’ve put the advisory first in the list. 3. **If you can’t patch today.** Follow any mitigation the vendor publishes, and limit who can reach the affected system from the internet until the update is in. 4. **Keep an eye on it.** Track the product and we tell you as soon as we spot this flaw on the list of exploited flaws, or a jump in its exploit likelihood. ### References - [semiconductor.samsung.com](https://semiconductor.samsung.com/support/quality-support/product-security-updates/) (Vendor advisory) ## Questions ### What is CVE-2023-42483? CVE-2023-42483 is a medium-severity flaw in Exynos 1080 from Samsung, published on 13 December 2023. An attacker has to be already on the device with an ordinary user account, and nobody has to click anything. If it works, the attacker can take it offline. ### How serious is CVE-2023-42483? It scores 4.7 out of 10 on the CVSS severity scale, which is medium. Our risk score for CVE-2023-42483 is 17 out of 100, which is Info. Its action is "Track". No sign of exploitation and a low forecast. Patch it in your normal update cycle. ### Is CVE-2023-42483 being exploited? It is not on the list of flaws known to be exploited today. The latest forecast puts the chance of it being used in the next 30 days at 0.1%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2023-42483 affect? For Exynos 1080 from Samsung: version not specified. The record lists 14 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2023-42483? Install the update the vendor names in its advisory, linked first under "How do I fix" on this page. If you can't patch today, follow the vendor's mitigation and limit who can reach the affected system from the internet. ## Does CVE-2023-42483 affect you? EdgeProtect keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.edgeprotect.io/register Book a demo: https://www.edgeprotect.io/contact