CVE-2022-27577

Q: How do I fix CVE-2022-27577?

Upgrade msc800 firmware to 4.15 or later.

Q: Is CVE-2022-27577 being actively exploited?

Not that we know of. CVE-2022-27577 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 70% of all scored CVEs.

Q: How severe is CVE-2022-27577?

CVE-2022-27577 has a CVSS v3 base score of 9.1, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2022-27577 affect?

Published advisories record a fix for msc800 firmware (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

CRITICAL

9.1

CVSS v3

NVD

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.

CWE-342 CWE-330

How to fix

Remediation Available

msc800 firmwareNVD

Affected:< 4.15Fixed in:4.15CVE-2022-27577derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.39%probability of exploitation in 30 days

70thpercentile

Moderate risk: more likely to be exploited than 70% of all known CVEs.

References

Vendor Advisory1

sick.com

Related Vulnerabilities

Other CWE-342 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-16226	Critical	9.8	2.3%	-	-
CVE-2014-9196	High	7.6	2.3%	-	-
CVE-2020-28388	Medium	6.5	1.4%	-	Fix
CVE-2023-3373	Medium	5.9	1.0%	-	Fix
CVE-2022-29930	High	8.7	0.9%	-	-

Common questions

How do I fix CVE-2022-27577?

Upgrade msc800 firmware to 4.15 or later.

Is CVE-2022-27577 being actively exploited?

Not that we know of. CVE-2022-27577 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.4% is the estimated probability that it will be exploited in the next 30 days. That is higher than 70% of all scored CVEs.

How severe is CVE-2022-27577?

CVE-2022-27577 has a CVSS v3 base score of 9.1, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2022-27577 affect?

Published advisories record a fix for msc800 firmware (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.