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CVE-2020-13840

24
FAUCET Score

CVE-2020-13840 is a critical buffer overflow vulnerability affecting LG mobile devices running Android OS versions 7.2 through 10, specifically those utilizing MediaTek (MTK) chipsets. This flaw, identified as CWE-120, allows for remote code execution through a vulnerable MTK AT command handler. With a CVSS score of 9.8, it represents a severe risk due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability compromise. Despite its critical severity, there is currently no public exploit code available (Metasploit, Nuclei, ExploitDB), nor is it listed in CISA's KEV catalog, indicating no known active exploitation. Community discussion and media coverage for this CVE are also minimal.

Impacted Technologies

VendorProductVersion(s)CPE
7.2CPE matchmatch criteria
cpe:2.3:o:google:android:7.2:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:google:android:8.0:*:*:*:*:*:*:*
8.1CPE matchmatch criteria
cpe:2.3:o:google:android:8.1:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:google:android:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:google:android:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.68%
Probability of exploitation in next 30 days
EPSS Percentile
48.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0068 is in the 31st percentile among its peer group of 36,835 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lgsecurity.lge.com
Vendor Advisory