# What is CVE-2020-1870? > CVE-2020-1870 is a high-severity flaw (CVSS 7.5) in Cloudengine 12800 from Huawei, published on 29 May 2020. 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 0.7%. If you run an affected version, plan in the vendor’s fix. Canonical page: https://www.precursorintelligence.com/what-is/cve-2020-1870 ## At a glance - **Verdict:** Plan it in. No sign of exploitation and a low forecast. Patch it in your normal update cycle. - **Precursor Intelligence risk score:** 47 out of 100 (Medium); action: Plan remediation. Kept up to date as the evidence changes. - **Severity:** High (CVSS 7.5 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:** 0.7% (latest exploit-likelihood forecast) - **Published:** 29 May 2020 - **Record last updated:** 18 November 2020 - **Main product:** Cloudengine 12800 from Huawei - **Affected products:** 4 ## What is CVE-2020-1870? In plain terms It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can take it offline. ### The official description There is a denial of service vulnerability in some Huawei products. Due to improper memory management, memory leakage may occur in some special cases. Attackers can perform a series of operations to exploit this vulnerability. Successful exploit may cause a denial of service. Affected product versions include: CloudEngine 12800 versions V200R019C00SPC800; CloudEngine 5800 versions V200R019C00SPC800; CloudEngine 6800 versions V200R005C20SPC800, V200R019C00SPC800; CloudEngine 7800 versions V200R019C00SPC800; NE40E versions V800R011C00SPC200, V800R011C00SPC300, V800R011C10SPC100; NE40E-F versions V800R011C00SPC200, V800R011C10SPC100; NE40E-M versions V800R011C00SPC200, V800R011C10SPC100. ### What kind of flaw is it? - CWE-772: Missing Release of Resource after Effective Lifetime ### How an attack on it works - Where an attacker can be: Anywhere on the internet - How hard it is to pull off: Easy: no special conditions - Login needed first: No login needed - 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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H` ## Is CVE-2020-1870 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 0.7%. That can change at any time, which is why we keep watching. Exploit likelihood over the last 7 days: 0.7%, 0.7%, 0.7%, 0.7%, 0.7%, 0.7%, 0.7%. ### Timeline - 29 May 2020: Published - 18 November 2020: Record last updated ### How Precursor Intelligence ranks it CVE-2020-1870 scores **47 out of 100 (Medium)**, with the action "Plan remediation". 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: smaller factor - Threat activity around it: smaller factor 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-2020-1870? The published record lists 4 products. - [Cloudengine 12800](https://www.precursorintelligence.com/product/huawei/cloudengine_12800) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified - [Cloudengine 12800 Firmware](https://www.precursorintelligence.com/product/huawei/cloudengine_12800_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r019c00, v200r019c00spc600, v200r019c00spc800, v200r019c10 - [Cloudengine 6800](https://www.precursorintelligence.com/product/huawei/cloudengine_6800) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Hardware): version not specified - [Cloudengine 6800 Firmware](https://www.precursorintelligence.com/product/huawei/cloudengine_6800_firmware) by [Huawei](https://www.precursorintelligence.com/vendors/huawei) (Operating system): v200r019c00spc800 ## How do I fix CVE-2020-1870? 1. **Check whether you run it.** Compare your versions with the affected products above. Not sure what you run? Precursor Intelligence 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 - [huawei.com](https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200527-01-dos-en) (Vendor advisory) ## Questions ### What is CVE-2020-1870? CVE-2020-1870 is a high-severity flaw in Cloudengine 12800 from Huawei, published on 29 May 2020. It can be attacked from anywhere on the internet without logging in, and nobody has to click anything. If it works, the attacker can take it offline. ### How serious is CVE-2020-1870? It scores 7.5 out of 10 on the CVSS severity scale, which is high. Our risk score for CVE-2020-1870 is 47 out of 100, which is Medium. Its action is "Plan remediation". No sign of exploitation and a low forecast. Patch it in your normal update cycle. ### Is CVE-2020-1870 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 0.7%. That can change at any time, which is why we keep watching. ### Which versions does CVE-2020-1870 affect? For Cloudengine 12800 from Huawei: version not specified. The record lists 4 products in all, each with its versions, under "Who is affected" on this page. ### How do I fix CVE-2020-1870? 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-2020-1870 affect you? Precursor Intelligence 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.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact