How severe is CVE-2020-22253?

CVE-2020-22253 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-22253 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-22253?

CVE-2020-22253 primarily affects Xiongmaitech Ahb7008t-mh-v2 Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-22253?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-22253 published?

CVE-2020-22253 was published on 2022-04-06 and last updated on 2026-06-17.

CVE-2020-22253

CVE-2020-22253 is a critical-severity vulnerability in Xiongmaitech Ahb7008t-mh-v2 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Xiongmaitech Ahb7008t-mh-v2 Firmware
Published: 2022-04-06
Last modified: 2026-06-17

Description

Xiongmai Technology Co devices AHB7008T-MH-V2, AHB7804R-ELS, AHB7804R-MH-V2, AHB7808R-MS-V2, AHB7808R-MS, AHB7808T-MS-V2, AHB7804R-LMS, and HI3518E_50H10L_S39 were all discovered to have port 9530 open which allows unauthenticated attackers to make arbitrary Telnet connections with the victim device.

Frequently asked questions

What is CVE-2020-22253?: Xiongmai Technology Co devices AHB7008T-MH-V2, AHB7804R-ELS, AHB7804R-MH-V2, AHB7808R-MS-V2, AHB7808R-MS, AHB7808T-MS-V2, AHB7804R-LMS, and HI3518E_50H10L_S39 were all discovered to have port 9530 open which allows unauthenticated attackers to make arbitrary Telnet connections with the victim device.
How severe is CVE-2020-22253?: CVE-2020-22253 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-22253 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-22253?: CVE-2020-22253 primarily affects Xiongmaitech Ahb7008t-mh-v2 Firmware. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-22253?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-22253 published?: CVE-2020-22253 was published on 2022-04-06 and last updated on 2026-06-17.

References

http://www.xiongmaitech.com/en/index.php/news/info/12/68

Affected products (8)

cpe:2.3:o:xiongmaitech:ahb7008t-mh-v2_firmware:4.02.r11.7601.nat.onvifc.20170420:*:*:*:*:*:*:*
cpe:2.3:o:xiongmaitech:ahb7804r-els_firmware:4.02.r11.nat.onvifc.20160422:*:*:*:*:*:*:*
cpe:2.3:o:xiongmaitech:ahb7804r-mh-v2_firmware:4.02.r11.7601.nat.onvifc.20170424:*:*:*:*:*:*:*
cpe:2.3:o:xiongmaitech:ahb7808r-ms-v2_firmware:4.02.r11.nat.onvifc.20170327:*:*:*:*:*:*:*
cpe:2.3:o:xiongmaitech:ahb7808r-ms_firmware:4.02.r11.nat.onvifc.20170328:*:*:*:*:*:*:*
cpe:2.3:o:xiongmaitech:ahb7808t-ms-v2_firmware:4.02.r11.nat.onvifc.20161205:*:*:*:*:*:*:*
cpe:2.3:o:xiongmaitech:ahb7804r-lms_firmware:4.02.r11.nat.onvifc.20170301:*:*:*:*:*:*:*
cpe:2.3:o:xiongmaitech:hi3518e_50h10l_s39_firmware:4.02.r12.nat.onvifs.20170727_all:*:*:*:*:*:*:*

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