CVE-2026-20434 is an out-of-bounds write vulnerability in MediaTek modems, stemming from a missing bounds check. This flaw carries a CVSS score of 7.5 (High) and could enable remote escalation of privilege if a user equipment (UE) connects to an attacker-controlled rogue base station, requiring user interaction for exploitation. While no public exploits or Metasploit/Nuclei modules are available, and it's not on the CISA KEV catalog, there has been minimal community discussion, indicating low current attention.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:mediatek:lr12a:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:mediatek:lr13:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:mediatek:nr15:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:mediatek:nr16:-:*:*:*:*:*:*:* | ||
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:o:mediatek:nr17:-:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.