Strix
26.1K

CVE-2022-27577

CRITICALCVSS 9.1/10EPSS 1.35%

Last modified

CVE-2022-27577 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. The vulnerability in the MSC800 in all versions before 4.15 allows for an attacker to predict the TCP initial sequence number. When the TCP sequence is predictable, an attacker can send packets that are forged to appear to come from a trusted computer. EPSS estimates a 1.35% chance of exploitation in the next 30 days.

Description

The vulnerability in the MSC800 in all versions before 4.15 allows for an attacker to predict the TCP initial sequence number. When the TCP sequence is predictable, an attacker can send packets that are forged to appear to come from a trusted computer. These forged packets could compromise services on the MSC800. SICK has released a new firmware version of the SICK MSC800 and recommends updating to the newest version.

Metrics

CVSS 3.1
9.1/10

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

EPSS Probability
1.35%

68.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
SickMsc800 Firmware< 4.15

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-27577?
The vulnerability in the MSC800 in all versions before 4.15 allows for an attacker to predict the TCP initial sequence number. When the TCP sequence is predictable, an attacker can send packets that are forged to appear to come from a trusted computer. These forged packets could compromise services on the MSC800. SICK has released a new firmware version of the SICK MSC800 and recommends updating to the newest version.
How severe is CVE-2022-27577?
CVE-2022-27577 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 1.35% probability of exploitation in the next 30 days.
How do I fix CVE-2022-27577?
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-2022-27577?

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

Scan your code now

Source: NVD / NIST