In UFS Field Firmware Update (FFU) functionality, there is a possible out-of-bounds write due to missing bounds checking on the PRDT table size. This could lead to local code execution or denial of service with no additional execution privileges needed.
This CVE has been withdrawn by MITRE
MITRE marked CVE-2026-121803 as REJECTED on . It is no longer considered a valid vulnerability record. The original content below is preserved for historical reference only.
Reason given by MITRE
This CVE ID is a duplicate of CVE-2026-80335 (VULN-002 dl_download_midst) and has been rejected.
CVE-2026-121803
✕ Withdrawn — historical dataHIGHPre-NVD 8.8
8.8CVSS
- CVSS v3
- 8.8
- EchelonGraph score
- Not yet assessedThis CVE record was withdrawn by its numbering authority, so there is no vulnerability to rate.
- EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- —Not applicable: this CVE ID was withdrawn
Published
November 4, 2026
Last Modified
November 4, 2026
Frequently asked(4)
What is CVE-2026-121803?
CVE-2026-121803 is a rejected CVE ID: its record was withdrawn on November 4, 2026 and no longer describes a vulnerability. Reason given: This CVE ID is a duplicate of CVE-2026-80335 (VULN-002 dl_download_midst) and has been rejected. Its record names CVE-2026-80335 as the replacement.
When was the CVE record for CVE-2026-121803 published?
The CVE record for CVE-2026-121803 was published on November 4, 2026. EchelonGraph's copy of the record carries a last-modified date of November 4, 2026; the record at its source may have been updated since.
What is the CVSS score of CVE-2026-121803?
CVE-2026-121803 has a CVSS base score of 8.8 (the CNA's own assessment, by unisoc; NVD's own analysis pending).
How do I remediate CVE-2026-121803?
There is nothing to remediate under CVE-2026-121803: it is a rejected (withdrawn) CVE ID and no longer describes a vulnerability. Its record names CVE-2026-80335 as the replacement; act on that CVE instead.