High severity · published Oct 5, 2021
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…
8.8
CVSS
1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 61% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AO
Axis OS · Axis
before 10.7 · source: NVD
AO
Axis OS 2016 · Axis
before 6.50.5.5 · source: NVD
AO
Axis OS 2018 · Axis
before 8.40.4.3 · source: NVD
AO
Axis OS 2020 · Axis
before 9.80.3.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-31988
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-31988
Vendor Advisory
https://www.axis.com/files/tech_notes/CVE-2021-31988.pdf
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