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CVE-2021-22129

HIGHCVSS 8.8/10EPSS 1.09%

Last modified

CVE-2021-22129 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Multiple instances of incorrect calculation of buffer size in the Webmail and Administrative interface of FortiMail before 6.4.5 may allow an authenticated attacker with regular webmail access to trigger a buffer overflow and to possibly execute unauthorized code or commands via specifically crafted HTTP requests.. EPSS estimates a 1.09% chance of exploitation in the next 30 days.

Description

Multiple instances of incorrect calculation of buffer size in the Webmail and Administrative interface of FortiMail before 6.4.5 may allow an authenticated attacker with regular webmail access to trigger a buffer overflow and to possibly execute unauthorized code or commands via specifically crafted HTTP requests.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
1.09%

61.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
FortinetFortimail<= 5.4.12
FortinetFortimail>= 5.6.1, < 6.0.11
FortinetFortimail>= 6.2.0, < 6.2.7
FortinetFortimail>= 6.4.0, < 6.4.5

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-22129?
Multiple instances of incorrect calculation of buffer size in the Webmail and Administrative interface of FortiMail before 6.4.5 may allow an authenticated attacker with regular webmail access to trigger a buffer overflow and to possibly execute unauthorized code or commands via specifically crafted HTTP requests.
How severe is CVE-2021-22129?
CVE-2021-22129 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.
How do I fix CVE-2021-22129?
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-2021-22129?

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

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Source: NVD / NIST