CVE-2019-19945

HIGH
7.5
CVSS Score
Published: March 16, 2020 at 05:17 PM UTC
Updated: June 17, 2026 at 02:27 AM UTC
1 product affected across 1 vendorOpenWRT

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Severity
HIGH7.5
Exploit prediction
EPSS 2%

Description

uhttpd in OpenWrt through 18.06.5 and 19.x through 19.07.0-rc2 has an integer signedness error. This leads to out-of-bounds access to a heap buffer and a subsequent crash. It can be triggered with an HTTP POST request to a CGI script, specifying both "Transfer-Encoding: chunked" and a large negative Content-Length value.

Affected

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

Remediation

No guide yet

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

References (2)

x_refsource_MISCPatchThird Party Advisory
https://github.com/openwrt/openwrt/commits/master
x_refsource_CONFIRMVendor Advisory
https://openwrt.org/advisory/2020-01-13-1

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-125CWE-681

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