CVE-2020-7248

HIGH
7.5
CVSS Score
Published: March 16, 2020 at 08:49 PM UTC
Updated: June 17, 2026 at 03:24 AM UTC
1 product affected across 1 vendorOpenWRT

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Severity
HIGH7.5
Exploit prediction
EPSS 2%

Description

libubox in OpenWrt before 18.06.7 and 19.x before 19.07.1 has a tagged binary data JSON serialization vulnerability that may cause a stack based buffer overflow.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

18.06.0 ≤ v < 18.06.719.07.019.07.0 rc119.07.0 rc2
Affected range stops below 18.06.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

x_refsource_MISCPatchThird Party Advisory
https://github.com/openwrt/openwrt/commits/master
x_refsource_MISCThird Party AdvisoryUS Government Resource
https://nvd.nist.gov/vuln/detail/CVE-2020-7248#range-4512438
x_refsource_CONFIRMx_refsource_MISCVendor Advisory
https://openwrt.org/advisory/2020-01-31-2

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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