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CVE-2021-45993

HIGHCVSS 7.5/10EPSS 1.04%

Last modified

CVE-2021-45993 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formIPMacBindModify. This vulnerability allows attackers to cause a Denial of Service (DoS) via the IPMacBindRuleIP and IPMacBindRuleMac parameters.. EPSS estimates a 1.04% chance of exploitation in the next 30 days.

Description

Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formIPMacBindModify. This vulnerability allows attackers to cause a Denial of Service (DoS) via the IPMacBindRuleIP and IPMacBindRuleMac parameters.

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
1.04%

59.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
TendacnG1 Firmware15.11.0.17\(9502\)_cn
TendacnG3 Firmware15.11.0.17\(9502\)_cn

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-45993?
Tenda routers G1 and G3 v15.11.0.17(9502)_CN were discovered to contain a stack overflow in the function formIPMacBindModify. This vulnerability allows attackers to cause a Denial of Service (DoS) via the IPMacBindRuleIP and IPMacBindRuleMac parameters.
How severe is CVE-2021-45993?
CVE-2021-45993 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.04% probability of exploitation in the next 30 days.
How do I fix CVE-2021-45993?
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-2021-45993?

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

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Source: NVD / NIST