CVE-2023-27396
FINS (Factory Interface Network Service) is a message communication protocol, which is designed...
FINS (Factory Interface Network Service) is a message communication protocol, which is designed to be used in closed FA (Factory Automation) networks, and is used in FA networks composed of OMRON products. Multiple OMRON products that implement FINS protocol contain following security issues -- (1)Plaintext communication, and (2)No authentication required. When FINS messages are intercepted, the contents may be retrieved. When arbitrary FINS messages are injected, any commands may be executed on, or the system information may be retrieved from, the affected device. Affected products and versions are as follows: SYSMAC CS-series CPU Units, all versions, SYSMAC CJ-series CPU Units, all versions, SYSMAC CP-series CPU Units, all versions, SYSMAC NJ-series CPU Units, all versions, SYSMAC NX1P-series CPU Units, all versions, SYSMAC NX102-series CPU Units, all versions, and SYSMAC NX7 Database Connection CPU Units (Ver.1.16 or later)
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
9.8
FINS (Factory Interface Network Service) is a message communication protocol, which is designed to be used in closed FA (Factory Automation) networks, and is used in FA networks composed of OMRON products. Multiple OMRON products that implement FINS protocol contain following security issues -- (1)Plaintext communication, and (2)No authentication required. When FINS messages are intercepted, the contents may be retrieved. When arbitrary FINS messages are injected, any commands may be executed on, or the system information may be retrieved from, the affected device. Affected products and versions are as follows: SYSMAC CS-series CPU Units, all versions, SYSMAC CJ-series CPU Units, all versions, SYSMAC CP-series CPU Units, all versions, SYSMAC NJ-series CPU Units, all versions, SYSMAC NX1P-series CPU Units, all versions, SYSMAC NX102-series CPU Units, all versions, and SYSMAC NX7 Database Connection CPU Units (Ver.1.16 or later)
- Record
CVE-2023-27396- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-306
- Updated
- 2026-11-02
CVE List
9.8
FINS (Factory Interface Network Service) is a message communication protocol, which is designed to be used in closed FA (Factory Automation) networks, and is used in FA networks composed of OMRON products. Multiple OMRON products that implement FINS protocol contain following security issues -- (1)Plaintext communication, and (2)No authentication required. When FINS messages are intercepted, the contents may be retrieved. When arbitrary FINS messages are injected, any commands may be executed on, or the system information may be retrieved from, the affected device. Affected products and versions are as follows: SYSMAC CS-series CPU Units, all versions, SYSMAC CJ-series CPU Units, all versions, SYSMAC CP-series CPU Units, all versions, SYSMAC NJ-series CPU Units, all versions, SYSMAC NX1P-series CPU Units, all versions, SYSMAC NX102-series CPU Units, all versions, and SYSMAC NX7 Database Connection CPU Units (Ver.1.16 or later)
- Record
CVE-2023-27396- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-306
- Updated
- 2026-11-02
EUVDEUVD-2023-31172
9.8
FINS (Factory Interface Network Service) is a message communication protocol, which is designed to be used in closed FA (Factory Automation) networks, and is used in FA networks composed of OMRON products. Multiple OMRON products that implement FINS protocol contain following security issues -- (1)Plaintext communication, and (2)No authentication required. When FINS messages are intercepted, the contents may be retrieved. When arbitrary FINS messages are injected, any commands may be executed on, or the system information may be retrieved from, the affected device. Affected products and versions are as follows: SYSMAC CS-series CPU Units, all versions, SYSMAC CJ-series CPU Units, all versions, SYSMAC CP-series CPU Units, all versions, SYSMAC NJ-series CPU Units, all versions, SYSMAC NX1P-series CPU Units, all versions, SYSMAC NX102-series CPU Units, all versions, and SYSMAC NX7 Database Connection CPU Units (Ver.1.16 or later)
- Record
EUVD-2023-31172- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5mw2-67q5-9c2w
9.8
FINS (Factory Interface Network Service) is a message communication protocol, which is designed...
FINS (Factory Interface Network Service) is a message communication protocol, which is designed to be used in closed FA (Factory Automation) networks, and is used in FA networks composed of OMRON products. Multiple OMRON products that implement FINS protocol contain following security issues -- (1)Plaintext communication, and (2)No authentication required. When FINS messages are intercepted, the contents may be retrieved. When arbitrary FINS messages are injected, any commands may be executed on, or the system information may be retrieved from, the affected device. Affected products and versions are as follows: SYSMAC CS-series CPU Units, all versions, SYSMAC CJ-series CPU Units, all versions, SYSMAC CP-series CPU Units, all versions, SYSMAC NJ-series CPU Units, all versions, SYSMAC NX1P-series CPU Units, all versions, SYSMAC NX102-series CPU Units, all versions, and SYSMAC NX7 Database Connection CPU Units (Ver.1.16 or later)
- Record
GHSA-5mw2-67q5-9c2w- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-306
- Updated
- 2026-11-02
Affected products
- omron cj2h-cpu64-eip firmware
- omron cj2h-cpu64 firmware
- omron cj2h-cpu65-eip firmware
- omron cj2h-cpu65 firmware
- omron cj2h-cpu66-eip firmware
- omron cj2h-cpu66 firmware
- omron cj2h-cpu67-eip firmware
- omron cj2h-cpu67 firmware
- omron cj2h-cpu68-eip firmware
- omron cj2h-cpu68 firmware
- omron cj2m-cpu11 firmware
- omron cj2m-cpu12 firmware
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- omron cj2m-cpu13 firmware
- omron cj2m-cpu14 firmware
- omron cj2m-cpu15 firmware
- omron cj2m-cpu31 firmware
- omron cj2m-cpu32 firmware
- omron cj2m-cpu33 firmware
- omron cj2m-cpu34 firmware
- omron cj2m-cpu35 firmware
- omron cj2m-md211 firmware
- omron cj2m-md212 firmware
- omron cp1e-e10dr-a firmware
- omron cp1e-e10dr-d firmware
- omron cp1e-e10dt-a firmware
- omron cp1e-e10dt-d firmware
- omron cp1e-e10dt1-a firmware
- omron cp1e-e10dt1-d firmware
- omron cp1e-e14dr-a firmware
- omron cp1e-e14sdr-a firmware
- omron cp1e-e20dr-a firmware
- omron cp1e-e20sdr-a firmware
- omron cp1e-e30dr-a firmware
- omron cp1e-e30sdr-a firmware
- omron cp1e-e40dr-a firmware
- omron cp1e-e40sdr-a firmware
- omron cp1e-e60sdr-a firmware
- omron cp1e-n14dr-a firmware
- omron cp1e-n14dr-d firmware
- omron cp1e-n14dt-a firmware
- omron cp1e-n14dt-d firmware
- omron cp1e-n14dt1-a firmware
- omron cp1e-n14dt1-d firmware
- omron cp1e-n20dr-a firmware
- omron cp1e-n20dr-d firmware
- omron cp1e-n20dt-a firmware
- omron cp1e-n20dt-d firmware
- omron cp1e-n20dt1-a firmware
- omron cp1e-n20dt1-d firmware
- omron cp1e-n30dr-a firmware
- omron cp1e-n30dr-d firmware
- omron cp1e-n30dt-a firmware
- omron cp1e-n30dt-d firmware
- omron cp1e-n30dt1-a firmware
- omron cp1e-n30dt1-d firmware
- omron cp1e-n30s1dr-a firmware
- omron cp1e-n30s1dt-d firmware
- omron cp1e-n30s1dt1-d firmware
- omron cp1e-n30sdr-a firmware
- omron cp1e-n30sdt-d firmware
- omron cp1e-n30sdt1-d firmware
- omron cp1e-n40dr-a firmware
- omron cp1e-n40dr-d firmware
- omron cp1e-n40dt-a firmware
- omron cp1e-n40dt-d firmware
- omron cp1e-n40dt1-a firmware
- omron cp1e-n40dt1-d firmware
- omron cp1e-n40s1dr-a firmware
- omron cp1e-n40s1dt-d firmware
- omron cp1e-n40s1dt1-d firmware
- omron cp1e-n40sdr-a firmware
- omron cp1e-n40sdt-d firmware
- omron cp1e-n40sdt1-d firmware
- omron cp1e-n60dr-a firmware
- omron cp1e-n60dr-d firmware
- omron cp1e-n60dt-a firmware
- omron cp1e-n60dt-d firmware
- omron cp1e-n60dt1-a firmware
- omron cp1e-n60dt1-d firmware
- omron cp1e-n60s1dr-a firmware
- omron cp1e-n60s1dt-d firmware
- omron cp1e-n60s1dt1-d firmware
- omron cp1e-n60sdr-a firmware
- omron cp1e-n60sdt-d firmware
- omron cp1e-n60sdt1-d firmware
- omron cp1e-na20dr-a firmware
- omron cp1e-na20dt-d firmware
- omron cp1e-na20dt1-d firmware
- omron cp1h-x40dr-a firmware
- omron cp1h-x40dt-d firmware
- omron cp1h-x40dt1-d firmware
- omron cp1h-xa40dr-a firmware
- omron cp1h-xa40dt-d firmware
- omron cp1h-xa40dt1-d firmware
- omron cp1h-y20dt-d firmware
- omron cp1l-el20dr-d firmware
- omron cp1l-el20dt-d firmware
- omron cp1l-el20dt1-d firmware
- omron cp1l-em30dr-d firmware
- omron cp1l-em30dt-d firmware
- omron cp1l-em30dt1-d firmware
- omron cp1l-em40dr-d firmware
- omron cp1l-em40dt-d firmware
- omron cp1l-em40dt1-d firmware
- omron cp1l-l10dr-a firmware
- omron cp1l-l10dr-d firmware
- omron cp1l-l10dt-a firmware
- omron cp1l-l10dt-d firmware
- omron cp1l-l10dt1-d firmware
- omron cp1l-l14dr-a firmware
- omron cp1l-l14dr-d firmware
- omron cp1l-l14dt-a firmware
- omron cp1l-l14dt-d firmware
- omron cp1l-l14dt1-d firmware
- omron cp1l-l20dr-a firmware
- omron cp1l-l20dr-d firmware
- omron cp1l-l20dt-a firmware
- omron cp1l-l20dt-d firmware
- omron cp1l-l20dt1-d firmware
- omron cp1l-m30dr-a firmware
- omron cp1l-m30dr-d firmware
- omron cp1l-m30dt-a firmware
- omron cp1l-m30dt-d firmware
- omron cp1l-m30dt1-d firmware
- omron cp1l-m40dr-a firmware
- omron cp1l-m40dr-d firmware
- omron cp1l-m40dt-a firmware
- omron cp1l-m40dt-d firmware
- omron cp1l-m40dt1-d firmware
- omron cp1l-m60dr-a firmware
- omron cp1l-m60dr-d firmware
- omron cp1l-m60dt-a firmware
- omron cp1l-m60dt-d firmware
- omron cp1l-m60dt1-d firmware
- omron cp1w-16er firmware
- omron cp1w-16et1 firmware
- omron cp1w-16et firmware
- omron cp1w-20edr1 firmware
- omron cp1w-20edt1 firmware
- omron cp1w-20edt firmware
- omron cp1w-32er firmware
- omron cp1w-32et1 firmware
- omron cp1w-32et firmware
- omron cp1w-40edr firmware
- omron cp1w-40edt1 firmware
- omron cp1w-40edt firmware
- omron cp1w-8ed firmware
- omron cp1w-8er firmware
- omron cp1w-8et1 firmware
- omron cp1w-8et firmware
- omron cp1w-ad041 firmware
- omron cp1w-ad042 firmware
- omron cp1w-adb21 firmware
- omron cp1w-cif01 firmware
- omron cp1w-cif11 firmware
- omron cp1w-cif12-v1 firmware
- omron cp1w-cif41 firmware
- omron cp1w-cn811 firmware
- omron cp1w-da021 firmware
- omron cp1w-da041 firmware
- omron cp1w-da042 firmware
- omron cp1w-dab21v firmware
- omron cp1w-dam01 firmware
- omron cp1w-ext01 firmware
- omron cp1w-mab221 firmware
- omron cp1w-mad11 firmware
- omron cp1w-mad42 firmware
- omron cp1w-mad44 firmware
- omron cp1w-me05m firmware
- omron cp1w-srt21 firmware
- omron cp1w-ts001 firmware
- omron cp1w-ts002 firmware
- omron cp1w-ts003 firmware
- omron cp1w-ts004 firmware
- omron cp1w-ts101 firmware
- omron cp1w-ts102 firmware
- omron cp2e-e14dr-a firmware
- omron cp2e-e20dr-a firmware
- omron cp2e-e30dr-a firmware
- omron cp2e-e40dr-a firmware
- omron cp2e-e60dr-a firmware
- omron cp2e-n14dr-a firmware
- omron cp2e-n14dr-d firmware
- omron cp2e-n14dt-a firmware
- omron cp2e-n14dt-d firmware
- omron cp2e-n14dt1-d firmware
- omron cp2e-n20dr-a firmware
- omron cp2e-n20dr-d firmware
- omron cp2e-n20dt-a firmware
- omron cp2e-n20dt-d firmware
- omron cp2e-n20dt1-d firmware
- omron cp2e-n30dr-a firmware
- omron cp2e-n30dr-d firmware
- omron cp2e-n30dt-a firmware
- omron cp2e-n30dt-d firmware
- omron cp2e-n30dt1-d firmware
- omron cp2e-n40dr-a firmware
- omron cp2e-n40dr-d firmware
- omron cp2e-n40dt-a firmware
- omron cp2e-n40dt-d firmware
- omron cp2e-n40dt1-d firmware
- omron cp2e-n60dr-a firmware
- omron cp2e-n60dr-d firmware
- omron cp2e-n60dt-a firmware
- omron cp2e-n60dt-d firmware
- omron cp2e-n60dt1-d firmware
- omron cp2e-s30dr-a firmware
- omron cp2e-s30dt-d firmware
- omron cp2e-s30dt1-d firmware
- omron cp2e-s40dr-a firmware
- omron cp2e-s40dt-d firmware
- omron cp2e-s40dt1-d firmware
- omron cp2e-s60dr-a firmware
- omron cp2e-s60dt-d firmware
- omron cp2e-s60dt1-d firmware
- omron cp2w-cifd1 firmware
- omron cp2w-cifd2 firmware
- omron cp2w-cifd3 firmware
- omron cs1w-clk firmware
- omron cs1w-drm21-v1 firmware
- omron cs1w-eip21 firmware
- omron cs1w-etn21 firmware
- omron cs1w-fln22 firmware
- omron cs1w-nc271 firmware
- omron cs1w-nc471 firmware
- omron cs1w-ncf71 firmware
- omron cs1w-spu01-v2 firmware
- omron cs1w-spu02-v2 firmware
- omron nj-pa3001 firmware
- omron nj-pd3001 firmware
- omron nj101-1000 firmware
- omron nj101-1020 firmware
- omron nj101-9000 firmware
- omron nj101-9020 firmware
- omron nj301-1100 firmware
- omron nj301-1200 firmware
- omron nj501-1300 firmware
- omron nj501-1320 firmware
- omron nj501-1340 firmware
- omron nj501-1400 firmware
- omron nj501-1420 firmware
- omron nj501-1500 firmware
- omron nj501-1520 firmware
- omron nj501-4300 firmware
- omron nj501-4310 firmware
- omron nj501-4320 firmware
- omron nj501-4400 firmware
- omron nj501-4500 firmware
- omron nj501-5300 firmware
- omron nj501-r300 firmware
- omron nj501-r320 firmware
- omron nj501-r400 firmware
- omron nj501-r420 firmware
- omron nj501-r500 firmware
- omron nj501-r520 firmware
- omron nx102-1000 firmware
- omron nx102-1020 firmware
- omron nx102-1100 firmware
- omron nx102-1120 firmware
- omron nx102-1200 firmware
- omron nx102-1220 firmware
- omron nx102-9000 firmware
- omron nx102-9020 firmware
- omron nx1p2-1040dt1 firmware
- omron nx1p2-1040dt firmware
- omron nx1p2-1140dt1 firmware
- omron nx1p2-1140dt firmware
- omron nx1p2-9024dt1 firmware
- omron nx1p2-9024dt firmware
- omron nx701-1620 firmware
- omron nx701-1720 firmware
- omron corporation multiple omron products which implement fins protocol
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-27396 is a critical vulnerability (CVSS 9.8) in Omron Cj2h-cpu64-eip Firmware, published June 19, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.37%, the 72nd percentile. No source names a fixed version.
References
us-cert.gov/ics/advisories/icsa-19-346-02
ia.omron.com/product/vulnerability/OMSR-2023-003_en.pdf
fa.omron.co.jp/product/vulnerability/OMSR-2023-003_ja.pdf
jvn.jp/en/ta/JVNTA91513661
jvn.jp/ta/JVNTA91513661
us-cert.gov/ics/advisories/icsa-20-063-03
cisa.gov/uscert/ics/advisories/icsa-22-179-02
nvd.nist.gov/vuln/detail/CVE-2023-27396
github.com/advisories/GHSA-5mw2-67q5-9c2w