CVE-2020-27827
moderate-risk
Published 2021-03-18
A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.
Do I need to act?
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0.68% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10
High
NETWORK
/ LOW complexity
Affected Products (19)
Lldpd
Simatic Hmi Unified Comfort Panels Firmware
Simatic Net Cp 1243-1 Firmware
Simatic Net Cp 1243-8 Irc Firmware
Simatic Net Cp 1542Sp-1 Firmware
Simatic Net Cp 1542Sp-1 Irc Firmware
Simatic Net Cp 1543-1 Firmware
Simatic Net Cp 1543Sp-1 Firmware
Simatic Net Cp 1545-1 Firmware
Tim 1531 Irc Firmware
Sinumerik One Firmware
Affected Vendors
References (16)
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1921438
Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-194-07
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1921438
Third Party Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-194-07
47
/ 100
moderate-risk
Severity
26/34 · High
Exploitability
2/34 · Minimal
Exposure
19/34 · Moderate