CVE-2022-27255

Description

In Realtek eCos RSDK 1.5.7p1 and MSDK 4.9.4p1, the SIP ALG function that rewrites SDP data has a stack-based buffer overflow. This allows an attacker to remotely execute code without authentication via a crafted SIP packet that contains malicious SDP data.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 26.78% Top 5%
Vendor Advisory realtek.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2022-27255.pdf vendor advisory
https://forum.defcon.org/node/241835 third party advisory

Frequently Asked Questions

What is the severity of CVE-2022-27255?
CVE-2022-27255 has been scored as a critical severity vulnerability.
How to fix CVE-2022-27255?
To fix CVE-2022-27255, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-27255 being actively exploited in the wild?
It is possible that CVE-2022-27255 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~27% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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