CVE-2025-50404: Intelbras RX1500 Router v2.2.17 and before is vulnerable to Integer Overflow

Q: How do I fix CVE-2025-50404?

rx 1500 firmware: upgrade to newer than 2.2.17. Exact commands for each OS are on this page.

Q: Is CVE-2025-50404 being exploited?

CVE-2025-50404 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-50404 affect?

CVE-2025-50404 affects rx 1500 firmware. Severity is medium (CVSS 5.3). Intelbras RX1500 Router v2.2.17 and before is vulnerable to Integer Overflow. The websReadEvent function incorrectly uses the int type when processing the "command" field of the http header, causing the array to cross the boundary and overw

Q: How urgent is CVE-2025-50404?

Priority 52/100. EPSS top 4%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

This week

MEDIUM 5.3REMOTEUPGRADE

CVE-2025-50404 is a medium-severity flaw (CVSS 5.3) affecting rx 1500 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Intelbras RX1500 Router v2.2.17 and before is vulnerable to Integer Overflow. The websReadEvent function incorrectly uses the int type when processing the "command" field of the http header, causing the array to cross the boundary and overwrite other fields in the array.

Why this priority

EPSS top 4%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	9.9% (top 4%)
CISA exploited list	No
Weakness	CWE-190
Published	2025-07-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: intelbras

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-01 15:15 UTCPublished CVE record published
2026-06-17 09:35 UTCUpdated Record last modified

intelbras rx 1500 firmware UPGRADE

Affected: <= 2.2.17

Fixed in: newer than 2.2.17

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-50404?

rx 1500 firmware: upgrade to newer than 2.2.17. Exact commands for each OS are on this page.

Is CVE-2025-50404 being exploited?

CVE-2025-50404 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-50404 affect?

CVE-2025-50404 affects rx 1500 firmware. Severity is medium (CVSS 5.3). Intelbras RX1500 Router v2.2.17 and before is vulnerable to Integer Overflow. The websReadEvent function incorrectly uses the int type when processing the "command" field of the http header, causing the array to cross the boundary and overw

How urgent is CVE-2025-50404?

Priority 52/100. EPSS top 4%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-50405 MEDIUM 6.5 UPGRADE Intelbras RX1500 Router v2.2.17 and before is vulnerable to Incorrect Access Control in the FirmwareUpload fun
CVE-2025-26065 HIGH 7.3 MITIGATE MITIGATE A cross-site scripting (XSS) vulnerability in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 allows attackers to e
CVE-2025-26064 HIGH 7.3 MITIGATE MITIGATE A cross-site scripting (XSS) vulnerability in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 allows attackers to e
CVE-2025-26063 CRITICAL 9.8 MITIGATE MITIGATE An issue in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 allows unauthenticated attackers to execute arbitrary c
CVE-2025-26062 CRITICAL 9.8 MITIGATE MITIGATE An access control issue in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 allows unauthenticated attackers to acce

References

← Back to latest CVEs