CVE-2021-22440

Severity: medium (CVSS 4.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-07-13 · updated 2026-06-17
Weakness: CWE-22

Description

There is a path traversal vulnerability in some Huawei products. The vulnerability is due to that the software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly validate the pathname. Successful exploit could allow the attacker to access a location that is outside of the restricted directory by a crafted filename. Affected product versions include:HUAWEI Mate 20 9.0.0.195(C01E195R2P1), 9.1.0.139(C00E133R3P1);HUAWEI Mate 20 Pro 9.0.0.187(C432E10R1P16), 9.0.0.188(C185E10R2P1), 9.0.0.245(C10E10R2P1), 9.0.0.266(C432E10R1P16), 9.0.0.267(C636E10R2P1), 9.0.0.268(C635E12R1P16), 9.0.0.278(C185E10R2P1); Hima-L29C 9.0.0.105(C10E9R1P16), 9.0.0.105(C185E9R1P16), 9.0.0.105(C636E9R1P16); Laya-AL00EP 9.1.0.139(C786E133R3P1); OxfordS-AN00A 10.1.0.223(C00E210R5P1); Tony-AL00B 9.1.0.257(C00E222R2P1).

Affected products

Huawei Hima-L29C Firmware: 9.0.0.105(c10e9r1p16), 9.0.0.105(c185e9r1p16), 9.0.0.105(c636e9r1p16)
Huawei Laya-Al00Ep Firmware: 9.1.0.139(c786e133r3p1)
HUAWEI Mate 20: 9.0.0.195(c01e195r2p1), 9.1.0.139(c00e133r3p1)
HUAWEI Mate 20 Pro: 9.0.0.187(c432e10r1p16), 9.0.0.188(c185e10r2p1), 9.0.0.245(c10e10r2p1), 9.0.0.266(c432e10r1p16), 9.0.0.267(c636e10r2p1), 9.0.0.268(c635e12r1p16) (+1)
OxfordS-AN00A: 10.1.0.223(c00e210r5p1)
Huawei Tony-Al00B Firmware: 9.1.0.257(c00e222r2p1)

References

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