CVE-2021-37129

mediumpriority · track · 30EPSS 0.007 · 52 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.68% (52nd) EPSS

CVSS 5 · medium

Is it mine?

51 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-28

There is an out of bounds write vulnerability in some Huawei products. The vulnerability is caused by a function of a module that does not properly verify input parameter. Successful exploit could cause out of bounds write leading to a denial of service condition.Affected product versions include:IPS Module V500R005C00,V500R005C20;NGFW Module V500R005C00;NIP6600 V500R005C00,V500R005C20;S12700 V200R010C00SPC600,V200R011C10SPC500,V200R011C10SPC600,V200R013C00SPC500,V200R019C00SPC200,V200R019C00SPC500,V200R019C10SPC200,V200R020C00,V200R020C10;S1700 V200R010C00SPC600,V200R011C10SPC500,V200R011C10SPC600;S2700 V200R010C00SPC600,V200R011C10SPC500,V200R011C10SPC600;S5700 V200R010C00SPC600,V200R010C00SPC700,V200R011C10SPC500,V200R011C10SPC600,V200R019C00SPC500;S6700 V200R010C00SPC600,V200R011C10SPC500,V200R011C10SPC600;S7700 V200R010C00SPC600,V200R010C00SPC700,V200R011C10SPC500,V200R011C10SPC600;S9700 V200R010C00SPC600,V200R011C10SPC500,V200R011C10SPC600;USG9500 V500R005C00,V500R005C20.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-787US

affected products (51)

Products and version ranges known to be affected.

n/a IIPS Module;NGFW Module;NIP6600;S12700;S1700;S2700;S5700;S6700;S7700;S9700;USG9500≤ V200R010C00SPC600,V200R011C10SPC500,V200R011C10SPC600enisa_euvdEU
n/a IIPS Module;NGFW Module;NIP6600;S12700;S1700;S2700;S5700;S6700;S7700;S9700;USG9500≤ V200R010C00SPC600,V200R010C00SPC700,V200R011C10SPC500,V200R011C10SPC600enisa_euvdEU
n/a IIPS Module;NGFW Module;NIP6600;S12700;S1700;S2700;S5700;S6700;S7700;S9700;USG9500≤ V500R005C00enisa_euvdEU
n/a IIPS Module;NGFW Module;NIP6600;S12700;S1700;S2700;S5700;S6700;S7700;S9700;USG9500≤ V500R005C00,V500R005C20enisa_euvdEU
n/a IIPS Module;NGFW Module;NIP6600;S12700;S1700;S2700;S5700;S6700;S7700;S9700;USG9500≤ V200R010C00SPC600,V200R010C00SPC700,V200R011C10SPC500,V200R011C10SPC600,V200R019C00SPC500enisa_euvdEU
n/a IIPS Module;NGFW Module;NIP6600;S12700;S1700;S2700;S5700;S6700;S7700;S9700;USG9500≤ V200R010C00SPC600,V200R011C10SPC500,V200R011C10SPC600,V200R013C00SPC500,V200R019C00SPC200,V200R019C00SPC500,V200R019C10SPC200,V200R020C00,V200R020C10enisa_euvdEU
Huawei Technologies Co., Ltd. Huawei IPS Module≤ V500R005C20SPC601fstec_bduRU
Huawei Technologies Co., Ltd. Huawei NGFW Module≤ V500R005C20SPC601fstec_bduRU
Huawei Technologies Co., Ltd. Huawei NIP6600≤ V500R005C20SPC601fstec_bduRU
Huawei Technologies Co., Ltd. Huawei S12700≤ V200R021C00SPC100+SPH010fstec_bduRU
Huawei Technologies Co., Ltd. Huawei S12700≤ V200R019C10SPC500+V200R019SPH029fstec_bduRU
Huawei Technologies Co., Ltd. Huawei S7700≤ V200R019C10SPC500+V200R019SPH029fstec_bduRU
Huawei Technologies Co., Ltd. Huawei S9700≤ V200R019C10SPC500+V200R019SPH029fstec_bduRU
Huawei Technologies Co., Ltd. USG9500≤ V500R005C20SPC601fstec_bduRU
huawei ips module firmware= v500r005c00nvdUScpe:2.3:o:huawei:ips_module_firmware:*:*:*:*:*:*:*:*
huawei ips module firmware= v500r005c20nvdUScpe:2.3:o:huawei:ips_module_firmware:*:*:*:*:*:*:*:*
huawei ngfw module firmware= v500r005c00nvdUScpe:2.3:o:huawei:ngfw_module_firmware:*:*:*:*:*:*:*:*
huawei nip6600 firmware= v500r005c00nvdUScpe:2.3:o:huawei:nip6600_firmware:*:*:*:*:*:*:*:*
huawei nip6600 firmware= v500r005c20nvdUScpe:2.3:o:huawei:nip6600_firmware:*:*:*:*:*:*:*:*
huawei s12700 firmware= v200r010c00spc600nvdUScpe:2.3:o:huawei:s12700_firmware:*:*:*:*:*:*:*:*

showing 20 of 51

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2021-10-27modified 2026-06-17

related (16,140)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-111497US	—OT critical	88.0% (100th)	KEV	2026-10-22
A buffer overflow vulnerability in the Brotli decoder (c/dec/decode.c) in Google Brotli versions 1.0.3 through 1.2.0 on all platforms allows a remote unauthenticated attacker to co…
CVE-2026-86950US	—OT critical	26.2% (98th)	KEV	2026-09-28
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.11 and iPadOS 18.7.11, iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1,…
CVE-2026-87491US	—OT critical	3.51% (89th)	KEV	2026-09-09
Out of bounds write in V8 in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security…
CVE-2026-53362US	—OT critical	0.71% (53rd)	KEV	2026-07-04
In the Linux kernel, the following vulnerability has been resolved: ipv6: account for fraggap on the paged allocation path In __ip6_append_data(), when the paged-allocation branc…
CVE-2026-53266US	—OT critical	0.93% (61st)	KEV	2026-06-25
In the Linux kernel, the following vulnerability has been resolved: netfilter: bridge: make ebt_snat ARP rewrite writable The ebtables SNAT target keeps the Ethernet source addre…

+16135 more

references (6)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan