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CVE-2021-28847

HIGHCVSS 7.5/10EPSS 1.35%

Last modified

CVE-2021-28847 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. MobaXterm before 21.0 allows remote servers to cause a denial of service (Windows GUI hang) via tab title change requests that are sent repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls.. EPSS estimates a 1.35% chance of exploitation in the next 30 days.

Description

MobaXterm before 21.0 allows remote servers to cause a denial of service (Windows GUI hang) via tab title change requests that are sent repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls.

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
1.35%

68.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
MobatekMobaxterm< 21.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-28847?
MobaXterm before 21.0 allows remote servers to cause a denial of service (Windows GUI hang) via tab title change requests that are sent repeatedly at high speed, which results in many SetWindowTextA or SetWindowTextW calls.
How severe is CVE-2021-28847?
CVE-2021-28847 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.35% probability of exploitation in the next 30 days.
How do I fix CVE-2021-28847?
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-2021-28847?

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

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Source: NVD / NIST