VulnerabilityModified
CVE-2022-27255
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.
CRITICAL 9.8EPSS 37.1%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 37.1%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 37.08% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- realtek/ecos rsdk firmware · realtek/ecos msdk firmware
- Source
- cve@mitre.org
References
- https://forum.defcon.org/node/241835Third Party Advisory
- https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2022-27255.pdfVendor Advisory
- https://forum.defcon.org/node/241835Third Party Advisory
- https://www.realtek.com/images/safe-report/Realtek_APRouter_SDK_Advisory-CVE-2022-27255.pdfVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.