CVE-2025-29570: An issue in Shenzhen Libituo Technology Co., Ltd LBT-T300-T400 v3.2 allows a local attacker to escalate privil

Routine

HIGH 7.8MITIGATE

CVE-2025-29570 is a high-severity flaw (CVSS 7.8) affecting lbt-t300-t400 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in Shenzhen Libituo Technology Co., Ltd LBT-T300-T400 v3.2 allows a local attacker to escalate privileges via the function tftp_image_check of a binary named rc.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 90%)
CISA exploited list	No
Weakness	CWE-276
Published	2025-04-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: szlbt

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

Am I affected?

Timeline

2025-04-03 20:15 UTCPublished CVE record published
2026-06-17 09:05 UTCUpdated Record last modified

szlbt lbt-t300-t400 firmware MITIGATE

Affected: 3.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.2

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-2025-29570?

lbt-t300-t400 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-29570 being exploited?

CVE-2025-29570 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-2025-29570 affect?

CVE-2025-29570 affects lbt-t300-t400 firmware. Severity is high (CVSS 7.8). An issue in Shenzhen Libituo Technology Co., Ltd LBT-T300-T400 v3.2 allows a local attacker to escalate privileges via the function tftp_image_check of a binary named rc.

How urgent is CVE-2025-29570?

Priority 35/100. High severity; Public exploit reference

Related CVEs

CVE-2024-40536 MEDIUM 5.3 MITIGATE Shenzhen Libituo Technology Co., Ltd LBT-T300-T400 v3.2 were discovered to contain a stack overflow via the pi
CVE-2024-40535 CRITICAL 9.8 MITIGATE Shenzhen Libituo Technology Co., Ltd LBT-T300-T400 v3.2 was discovered to contain a stack overflow via the apn
CVE-2024-39181 MEDIUM 6.5 MITIGATE Shenzhen Libituo Technology Co., Ltd LBT-T300-T400 v3.2 was discovered to contain a buffer overflow via the Ap

References

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