Insufficient verification of data authenticity in Siemens LOGO! 8 BM
Priority LOW 33CWE-345Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-345.
Summary
A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). Affected devices load firmware updates without checking the authenticity. Furthermore the integrity of the unencrypted firmware is only verified by a non-cryptographic method. This could allow an attacker to manipulate a firmware update and flash it to the device.
Why it matters now
EPSS 0.00301 22nd percentileScored 2026-11-07
Fix Fixed LOGO! 8 BM (incl. SIPLUS variants) (Siemens): V8.3
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 |
|---|---|---|---|---|---|
| Siemens | LOGO! 8 BM (incl. SIPLUS variants) | before V8.3 | V8.3 | Patch available | CNA |
- LOGO! 8 BM (incl. SIPLUS variants) VendorSiemens Affected before V8.3 Fixed in V8.3 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:siemens:logo\!_8_bm_firmware:*:*:*:*:*:*:*:* | before 8.3 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:logo\!8_bm:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:logo\!8_bm_fs-05_firmware:*:*:*:*:*:*:*:* | before 8.3 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:logo\!8_bm_fs-05:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
- cpe:2.3:o:siemens:logo\!_8_bm_firmware:*:*:*:*:*:*:*:* Versions before 8.3 Vulnerable ·Siemens
- cpe:2.3:h:siemens:logo\!8_bm:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:logo\!8_bm_fs-05_firmware:*:*:*:*:*:*:*:* Versions before 8.3 Vulnerable ·Siemens
- cpe:2.3:h:siemens:logo\!8_bm_fs-05:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
Remediation
- Fix · CNA LOGO! 8 BM (incl. SIPLUS variants) (Siemens) Fixed in V8.3
Timeline
- 2026-10-02 Threatist record created from CVE-2022-36360
- 2026-10-03 Alias added: GHSA-qqx5-8972-3h6c
References
More Siemens Logo!8 Bm Fs-05 Firmware vulnerabilities
- TI-2022-16702 Buffer overflow in Siemens LOGO! 12/24RCE CVSS 3.1CRITICAL 9.8
- TI-2017-09439 Information disclosure in Siemens LOGO! 8 BM CVSS 3.1HIGH 7.5
- TI-2022-16703 Improper input validation in Siemens LOGO! 12/24RCE CVSS 3.1HIGH 7.5
- TI-2022-16704 Improper input validation in Siemens LOGO! 12/24RCE CVSS 3.1MEDIUM 5.3
Sources
- CVE-2022-36360 · CVE Program
- CVE-2022-36360 · NVD
- FIRST EPSS
- GHSA-qqx5-8972-3h6c · GitHub Advisory Database · CC BY 4.0
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