CVE-2021-41612 json
An issue was discovered in the ALU unit of the OpenRISC mor1kx processor.
published 2023-04-18 3 y ago modified 2026-06-17 4 mo ago also EUVD-2021-28626
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 66%
- public exploits
- 0
- none known
Summary
An issue was discovered in the ALU unit of the OpenRISC mor1kx processor. The carry flag is not being updated correctly for the subtract instruction, which results in an incorrect value of the carry flag. Any software that relies on this flag may experience corruption in execution.
Patch / fix
- openrisc mor1kx_firmware 5.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 21 mo ago
Exploit prediction
1.15% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- seth.engr.tamu.edu https://seth.engr.tamu.edu/software-releases/thehuzz/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
-
seth.engr.tamu.edu
/software-releases/thehuzz/
exploit, third-party-advisory
-
github.com
/openrisc/mor1kx/issues/139
vdb-entry
Sources
- CVE List CVE-2021-41612
- NVD CVE-2021-41612
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