CVE-2025-44526: Realtek RTL8762EKF-EVB RTL8762E SDK V1.4.0 was discovered to utilize insufficient permission checks on critica

Routine

MEDIUM 6.5DOWNGRADE

CVE-2025-44526 is a medium-severity flaw (CVSS 6.5) affecting rtl8762e software development kit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Realtek RTL8762EKF-EVB RTL8762E SDK V1.4.0 was discovered to utilize insufficient permission checks on critical fields within Bluetooth Low Energy (BLE) data packets. This issue allows attackers to cause a Denial of Service (DoS) via a crafted LL_Length_Req packet.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 73%)
CISA exploited list	No
Weakness	CWE-20, CWE-284
Published	2025-07-09
Last modified	2026-07-05

Publisher (CNA): MITRE · Vendor: realtek

Last updated 2026-07-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-09 16:15 UTCPublished CVE record published
2026-07-05 16:19 UTCUpdated Record last modified

realtek rtl8762e software development kit DOWNGRADE

Affected: 1.4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4.0

1. Check installed version

apt-cache policy rtl8762e-software-development-kit || rpm -q rtl8762e-software-development-kit || rtl8762e-software-development-kit --version

2. No fixed release: DOWNGRADE to a release before 1.4.0 (Debian / Ubuntu)

apt-cache madison rtl8762e-software-development-kit sudo apt install rtl8762e-software-development-kit=<VERSION_BEFORE_1.4.0> sudo apt-mark hold rtl8762e-software-development-kit

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list rtl8762e-software-development-kit sudo dnf downgrade rtl8762e-software-development-kit-<VERSION_BEFORE_1.4.0> sudo dnf versionlock add rtl8762e-software-development-kit

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2025-44526?

rtl8762e software development kit: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-44526 being exploited?

CVE-2025-44526 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-2025-44526 affect?

CVE-2025-44526 affects rtl8762e software development kit. Severity is medium (CVSS 6.5). Realtek RTL8762EKF-EVB RTL8762E SDK V1.4.0 was discovered to utilize insufficient permission checks on critical fields within Bluetooth Low Energy (BLE) data packets. This issue allows attackers to cause a Denial of Service (DoS) via a craf

How urgent is CVE-2025-44526?

Priority 34/100. Public exploit reference

Software pages

Bluetooth vulnerabilities

Related CVEs

CVE-2025-44531 HIGH 7.5 DOWNGRADE An issue in Realtek RTL8762EKF-EVB RTL8762E SDK v1.4.0 allows attackers to cause a Denial of Service (DoS) via

References

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