The vulnerability in the MSC800 in all versions before 4.15 allows for an attacker to…
Priority MEDIUM 42CWE-342Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.01435 73rd percentileScored 2026-11-07
Fix Fixed SICK MSC800: 4.15
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | SICK MSC800 | before 4.15 | 4.15 | Patch available | CNA |
- SICK MSC800 Vendor— Affected before 4.15 Fixed in 4.15 Patch available CNA
Remediation
- Fix · CNA SICK MSC800 Fixed in 4.15
Timeline
- 2026-10-02 Threatist record created from CVE-2022-27577
- 2026-10-03 Alias added: GHSA-crjp-2pp7-rchg
References
Advisory 1
More SICK AG Msc800 Firmware vulnerabilities
- TI-2019-08198 Hard-coded credentials in SICK AG MSC800 CVSS 3.0CRITICAL 9.8
- TI-2020-01963 Improper handling of exceptional conditions in Bulkscan LMS111; Bulkscan LMS511; CLV62x… CVSS 3.1HIGH 7.5
Sources
- CVE-2022-27577 · CVE Program
- CVE-2022-27577 · NVD
- FIRST EPSS
- GHSA-crjp-2pp7-rchg · GitHub Advisory Database · CC BY 4.0
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