CVE-2025-26063: An issue in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 allows unauthenticated attackers to execute arbitrary c

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CRITICAL 9.8REMOTEMITIGATEMITIGATE

CVE-2025-26063 is a critical-severity flaw (CVSS 9.8) affecting rx 1500 firmware, rx 3000 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 allows unauthenticated attackers to execute arbitrary code via injecting a crafted payload into the ESSID name when creating a network.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-77
Published	2025-07-31
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

2025-07-31 19:15 UTCPublished CVE record published
2026-06-17 09:01 UTCUpdated Record last modified

intelbras rx 1500 firmware MITIGATE

Affected: 2.2.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.2.9

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.

intelbras rx 3000 firmware MITIGATE

Affected: 1.0.11

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.11

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-2025-26063?

rx 1500 firmware: mitigate or apply the listed mitigation; rx 3000 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-26063 being exploited?

CVE-2025-26063 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-2025-26063 affect?

CVE-2025-26063 affects rx 1500 firmware, rx 3000 firmware. Severity is critical (CVSS 9.8). An issue in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 allows unauthenticated attackers to execute arbitrary code via injecting a crafted payload into the ESSID name when creating a network.

How urgent is CVE-2025-26063?

Priority 62/100. Critical severity; 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-2025-50404 MEDIUM 5.3 UPGRADE Intelbras RX1500 Router v2.2.17 and before is vulnerable to Integer Overflow
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-2025-26062 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

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