CVE-2021-22312
No known exploitation. EPSS puts it in the 56th percentile. A vendor fix is available.
What to do
The vendor has published a fix. Version details are below where the sources state them.
What it is
From the CVE record
There is a memory leak vulnerability in some Huawei products. An authenticated remote attacker may exploit this vulnerability by sending specific message to the affected product. Due to not release the allocated memory properly, successful exploit may cause some service abnormal. Affected product include some versions of IPS Module, NGFW Module, Secospace USG6300, Secospace USG6500, Secospace USG6600 and USG9500.
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Not in the catalog. CISA has not confirmed exploitation.
- Public exploits
No public exploit or proof of concept found in the sources we track.
- EPSS
0.8% chance of exploitation activity in the next 30 days, which ranks it in the 56th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
4 events over 1323 days, from the signal feeds we watch.
- Patch availablerecord updated
- Publishedweakness classified
Affected products
- ips module firmwareICS / OT / IoT / industrial-network
- ngfw module firmwareHardware Firmware / network-adapter
- secospace usg6300 firmwareNetworking Infrastructure / firewall
- secospace usg6500 firmwareNetworking Infrastructure / firewall
- secospace usg6600 firmwareNetworking Infrastructure / firewall
- usg9500 firmwareNetworking Infrastructure / firewall
- nip6300 firmwareICS / OT / IoT / ip-camera-nvr
- nip6600 firmwareICS / OT / IoT / smart-home
- Huawei NIP6300Networking Infrastructure / firewall
- Huawei NIP6600Networking Infrastructure / firewall
- Huawei NIP6800Networking Infrastructure / firewall
- Huawei Secospace USG6300Networking Infrastructure / firewall
- Huawei Secospace USG6500Networking Infrastructure / firewall
- Huawei Secospace USG6600Networking Infrastructure / firewall
- Huawei IPS ModuleOperating Systems / mobile-os
- Huawei NGFW ModuleNetworking Infrastructure / firewall
And 9 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Scored 6.5 by NVD.
How it is reached
- Attack Vector NetworkExploitable remotely over the network without any special conditions
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required LowRequires basic user-level privileges
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality NoneNo confidentiality impact
- Integrity NoneNo integrity impact
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
Sources
References in the record
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