CVE-2020-1824· NVD / CVE Program· CNA huawei

There are multiple out of bounds (OOB) read vulnerabilities in the implementation of the Common Open Policy Service (COPS) protocol of some

There are multiple out of bounds (OOB) read vulnerabilities in the implementation of the Common Open Policy Service (COPS) protocol of some Huawei products. The specific decoding function may occur out-of-bounds read when processes an incoming data packet. Successful exploit of these vulnerabilities may disrupt service on the affected device. (Vulnerability ID: HWPSIRT-2018-12275,HWPSIRT-2018-12276,HWPSIRT-2018-12277,HWPSIRT-2018-12278,HWPSIRT-2018-12279,HWPSIRT-2018-12280 and HWPSIRT-2018-12289) The seven vulnerabilities have been assigned seven Common Vulnerabilities and Exposures (CVE) IDs: CVE-2020-1818, CVE-2020-1819, CVE-2020-1820, CVE-2020-1821, CVE-2020-1822, CVE-2020-1823 and CVE-2020-1824.

MediumCVSS 5.3 · v3.1—No exploit No fix recorded

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Published: Dec 28, 2024
Updated: Jun 16, 2026
EPSS: 0.3% · 23th percentile
CWE: CWE-125

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Action score

Monitor

Low priority for now.

CVSS: 21 / 40 · 5.3 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.3%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 5.3
CNA · huawei: 3.7; 1.6 point gap

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

Vendor	Product	CPE
huawei	ips module firmware	cpe:2.3:o:huawei:ips_module_firmware
huawei	ips module	cpe:2.3:h:huawei:ips_module
huawei	ngfw module firmware	cpe:2.3:o:huawei:ngfw_module_firmware
huawei	ngfw module	cpe:2.3:h:huawei:ngfw_module
huawei	nip6300 firmware	cpe:2.3:o:huawei:nip6300_firmware
huawei	nip6300	cpe:2.3:h:huawei:nip6300
huawei	nip6600 firmware	cpe:2.3:o:huawei:nip6600_firmware
huawei	nip6600	cpe:2.3:h:huawei:nip6600
huawei	nip6800 firmware	cpe:2.3:o:huawei:nip6800_firmware
huawei	nip6800	cpe:2.3:h:huawei:nip6800
huawei	secospace usg6300 firmware	cpe:2.3:o:huawei:secospace_usg6300_firmware
huawei	secospace usg6300	cpe:2.3:h:huawei:secospace_usg6300

and 6 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

huawei ips module firmwarev500r001c30
huawei ips module firmwarev500r001c60
huawei ips module firmwarev500r005c00
huawei ngfw module firmwarev500r002c00
huawei ngfw module firmwarev500r002c20
huawei ngfw module firmwarev500r005c00
huawei nip6300 firmwarev500r001c30
huawei nip6300 firmwarev500r001c60
huawei nip6300 firmwarev500r005c00
huawei nip6600 firmwarev500r001c30
huawei nip6600 firmwarev500r001c60
huawei nip6600 firmwarev500r005c00
huawei nip6800 firmwarev500r001c60
huawei nip6800 firmwarev500r005c00
huawei secospace usg6300 firmwarev500r001c30
huawei secospace usg6300 firmwarev500r001c60
huawei secospace usg6300 firmwarev500r005c00
huawei secospace usg6500 firmwarev500r001c30
huawei secospace usg6500 firmwarev500r001c60
huawei secospace usg6500 firmwarev500r005c00

Versions reported by the vendor

Affected version ranges reported by the assigning authority (huawei). Independent of NVD's CPE analysis and usually ahead of it.

Huawei IPS Module
- V500R001C30, V500R001C60, V500R005C00affected
Huawei NGFW Module
- V500R002C00, V500R002C20, V500R005C00affected
Huawei NIP6300
- V500R001C30, V500R001C60, V500R005C00affected
Huawei NIP6600
- V500R001C30, V500R001C60, V500R005C00affected
Huawei NIP6800
- V500R001C60, V500R005C00affected
Huawei Secospace USG6300
- V500R001C30, V500R001C60, V500R005C00affected
Huawei Secospace USG6500
- V500R001C30, V500R001C60, V500R005C00affected
Huawei Secospace USG6600
- V500R001C30, V500R005C00affected
Huawei USG6000V
- V500R003C00affected

Same product

huawei: all records

Other highest-scoring records for the same primary product.

CVE-2020-9099Huawei products IPS Module; NGFW Module; NIP6300; NIP6600; NIP6800; Secospace USG6300; Secospace USG6500; Secospace USG6600; USG9500 with ve
39Monitor
CVE-2021-37129There is an out of bounds write vulnerability in some Huawei products.
30Monitor
CVE-2021-22320There is a denial of service vulnerability in Huawei products.
30Monitor
CVE-2017-17157IKEv2 in Huawei IPS Module V500R001C00, V500R001C00SPC200, V500R001C00SPC300, V500R001C00SPC500, V500R001C00SPH303, V500R001C00SPH508, V500R
30Monitor
CVE-2017-17156IKEv2 in Huawei IPS Module V500R001C00, V500R001C00SPC200, V500R001C00SPC300, V500R001C00SPC500, V500R001C00SPH303, V500R001C00SPH508, V500R
30Monitor
CVE-2017-17155IKEv2 in Huawei IPS Module V500R001C00, V500R001C00SPC200, V500R001C00SPC300, V500R001C00SPC500, V500R001C00SPH303, V500R001C00SPH508, V500R
30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

CVE-2020-18200 days apartThere are multiple out of bounds (OOB) read vulnerabilities in the implementation of the Common Open Policy Service (COPS) protocol of some
21Monitor
CVE-2020-18210 days apartThere are multiple out of bounds (OOB) read vulnerabilities in the implementation of the Common Open Policy Service (COPS) protocol of some
21Monitor
CVE-2020-18220 days apartThere are multiple out of bounds (OOB) read vulnerabilities in the implementation of the Common Open Policy Service (COPS) protocol of some
21Monitor
CVE-2020-18230 days apartThere are multiple out of bounds (OOB) read vulnerabilities in the implementation of the Common Open Policy Service (COPS) protocol of some
21Monitor
CVE-2020-18181 days apartThere are multiple out of bounds (OOB) read vulnerabilities in the implementation of the Common Open Policy Service (COPS) protocol of some
21Monitor
CVE-2020-18191 days apartThere are multiple out of bounds (OOB) read vulnerabilities in the implementation of the Common Open Policy Service (COPS) protocol of some
21Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).