CVE-2020-22253

Name: CVE-2020-22253
Creator: NVD / NIST
Published: 2022-04-06T23:15:08.83+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.06%

Last modified Jun 17, 2026

CVE-2020-22253 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 1.06% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.06%

60.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Xiongmaitech	Ahb7008t-Mh-V2 Firmware	4.02.r11.7601.nat.onvifc.20170420
Xiongmaitech	Ahb7804r-Els Firmware	4.02.r11.nat.onvifc.20160422
Xiongmaitech	Ahb7804r-Mh-V2 Firmware	4.02.r11.7601.nat.onvifc.20170424
Xiongmaitech	Ahb7808r-Ms-V2 Firmware	4.02.r11.nat.onvifc.20170327
Xiongmaitech	Ahb7808r-Ms Firmware	4.02.r11.nat.onvifc.20170328
Xiongmaitech	Ahb7808t-Ms-V2 Firmware	4.02.r11.nat.onvifc.20161205
Xiongmaitech	Ahb7804r-Lms Firmware	4.02.r11.nat.onvifc.20170301
Xiongmaitech	Hi3518e 50h10l S39 Firmware	4.02.r12.nat.onvifs.20170727_all

References

http://www.xiongmaitech.com/en/index.php/news/info/12/68Mitigation, Vendor Advisory
http://www.xiongmaitech.com/en/index.php/news/info/12/68Mitigation, Vendor Advisory

Timeline

Published: Apr 6, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-22253?

How severe is CVE-2020-22253?

CVE-2020-22253 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.06% probability of exploitation in the next 30 days.

How do I fix CVE-2020-22253?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-22253?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST