CVE-2025-66367: Samsung Semiconductor Exynos 850 · Out-of-bounds Read
Affects Samsung Semiconductor Exynos 850Source CVE Database V5
Not known to be exploited : upgrade to July 2026 when convenient.
Data as of 5 Nov 2026, 03:12 UTC
Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- Patch
- Available – fixed in July 2026
Exploitation evidence
Disclosed: evidence found.
CVE published 5 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Upgrade Exynos to July 2026.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Samsung SemiconductorExynos 850 | Affected
| Fixed in
|
| Samsung SemiconductorExynos 2100 | Affected
| Fixed in
|
| Samsung SemiconductorExynos 1280 | Affected
| Fixed in
|
| Samsung SemiconductorExynos 2200 | Affected
| Fixed in
|
| Samsung SemiconductorExynos 1330 | Affected
| Fixed in
|
| Samsung SemiconductorExynos 1380 | Affected
| Fixed in
|
AI-suggested
A fix for this vulnerability was released in July 2026. Users and device manufacturers should apply the official patch to remediate the issue. No additional mitigation steps are indicated.
Description
CVE-2025-66367 is an out-of-bounds read vulnerability (CWE-125) in the Samsung Semiconductor Exynos 850 chipset. It arises from improper handling of NAS DLTransport messages, which may cause the baseband to crash. A fix was released in July 2026.