CVE-2023-7266: Some Huawei home routers have a connection hijacking vulnerability

Routine

HIGH 7.5REMOTEMITIGATEMITIGATEMITIGATE

CVE-2023-7266 is a high-severity flaw (CVSS 7.5) affecting tc7001-10 firmware, ws7200-10 firmware, ws7206-10 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Some Huawei home routers have a connection hijacking vulnerability. Successful exploitation of this vulnerability may cause DoS or information leakage.(Vulnerability ID:HWPSIRT-2023-76605) This vulnerability has been assigned a (CVE)ID:CVE-2023-7266

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-420
Published	2024-12-28
Last modified	2026-06-17

Publisher (CNA): Huawei Technologies · Vendor: huawei

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

Am I affected?

Timeline

2024-12-28 07:15 UTCPublished CVE record published
2026-06-17 06:52 UTCUpdated Record last modified

huawei tc7001-10 firmware MITIGATE

Affected: 2.0.0.336\(sp6c300\)

Fixed in: no fixed release known

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.

huawei ws7200-10 firmware MITIGATE

Affected: 3.0.3.215

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.3.215

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.

huawei ws7206-10 firmware MITIGATE

Affected: 4.0.0.16\(v3r2\)

Fixed in: no fixed release known

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-2023-7266?

tc7001-10 firmware: mitigate or apply the listed mitigation; ws7200-10 firmware: mitigate or apply the listed mitigation; ws7206-10 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-7266 being exploited?

CVE-2023-7266 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-2023-7266 affect?

CVE-2023-7266 affects tc7001-10 firmware, ws7200-10 firmware, ws7206-10 firmware. Severity is high (CVSS 7.5). Some Huawei home routers have a connection hijacking vulnerability. Successful exploitation of this vulnerability may cause DoS or information leakage.(Vulnerability ID:HWPSIRT-2023-76605) This vulnerability has been assigned a (CVE)ID:CVE-

How urgent is CVE-2023-7266?

Priority 36/100. High severity; Remotely exploitable, no login, no user action

Software pages

Huawei vulnerabilities

References

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