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CVE-2021-31988

HIGHCVSS 8.8/10EPSS 0.92%

Last modified

CVE-2021-31988 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A user controlled parameter related to SMTP test functionality is not correctly validated making it possible to add the Carriage Return and Line Feed (CRLF) control characters and include arbitrary SMTP headers in the generated test email.. EPSS estimates a 0.92% chance of exploitation in the next 30 days.

Description

A user controlled parameter related to SMTP test functionality is not correctly validated making it possible to add the Carriage Return and Line Feed (CRLF) control characters and include arbitrary SMTP headers in the generated test email.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
0.92%

55.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AxisAxis Os< 10.7
AxisAxis Os 2016< 6.50.5.5
AxisAxis Os 2018< 8.40.4.3
AxisAxis Os 2020< 9.80.3.5

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-31988?
A user controlled parameter related to SMTP test functionality is not correctly validated making it possible to add the Carriage Return and Line Feed (CRLF) control characters and include arbitrary SMTP headers in the generated test email.
How severe is CVE-2021-31988?
CVE-2021-31988 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.92% probability of exploitation in the next 30 days.
How do I fix CVE-2021-31988?
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-2021-31988?

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

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Source: NVD / NIST