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CVE-2021-21734

MEDIUM
6.5
CVSS Score
Published: May 28, 2021 at 11:45 AM UTC
Updated: June 17, 2026 at 03:36 AM UTC
16 products affected across 1 vendorZXA10 F809 FirmwareZXA10 F839 FirmwareZXA10 F822 Firmware

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.5%

Description

Some PON MDU devices of ZTE stored sensitive information in plaintext, and users with login authority can obtain it by inputing command. This affects: ZTE PON MDU device ZXA10 F821 V1.7.0P3T22, ZXA10 F822 V1.4.3T6, ZXA10 F819 V1.2.1T5, ZXA10 F832 V1.1.1T7, ZXA10 F839 V1.1.0T8, ZXA10 F809 V3.2.1T1, ZXA10 F822P V1.1.1T7, ZXA10 F832 V2.00.00.01

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

ZXA10 F809 Firmware· ZTE
95%
3.2.1t1
zte-zxa10-f809 (same device)
ZXA10 F819 Firmware· ZTE
95%
1.2.1t5
zte-zxa10-f819 (same device)
ZXA10 F821 Firmware· ZTE
95%
1.7.0p3t22
zte-zxa10-f821 (same device)
ZXA10 F822 Firmware· ZTE
95%
1.4.3t6
zte-zxa10-f822 (same device)
ZXA10 F822P Firmware· ZTE
95%
1.1.1t7
zte-zxa10-f822p (same device)
ZXA10 F832 Firmware· ZTE
95%
1.1.1t7
zte-zxa10-f832 (same device)
ZXA10 F832V2 Firmware· ZTE
95%
2.00.00.01
zte-zxa10-f832v2 (same device)
ZXA10 F839 Firmware· ZTE
95%
1.1.0t8
zte-zxa10-f839 (same device)
ZXA10 F809· ZTE
60%
ZXA10 F821 V1.7.0P3T22,ZXA10 F822 V1.4.3T6,ZXA10 F819 V1.2.1T5,ZXA10 F832 V1.1.1T7,ZXA10 F839 V1.1.0T8,ZXA10 F809 V3.2.1T1,ZXA10 F822P V1.1.1T7,ZXA10 F832 V2.00.00.01
ZXA10 F819· ZTE
60%
ZXA10 F821 V1.7.0P3T22,ZXA10 F822 V1.4.3T6,ZXA10 F819 V1.2.1T5,ZXA10 F832 V1.1.1T7,ZXA10 F839 V1.1.0T8,ZXA10 F809 V3.2.1T1,ZXA10 F822P V1.1.1T7,ZXA10 F832 V2.00.00.01

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://support.zte.com.cn/support/news/LoopholeInfoDetail.aspx?newsId=1015524

CVSS

6.5MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-312

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