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CVE-2017-7541

7.8 · HIGH

The brcmf_cfg80211_mgmt_tx function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.12.3 allows local users to cause a denial of service (buffer overflow…

Published Jul 25, 2017CWE-119EPSS 0.55%

Overview

CVE-2017-7541 is a high-severity vulnerability. It was published on July 25, 2017 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

The brcmf_cfg80211_mgmt_tx function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.12.3 allows local users to cause a denial of service (buffer overflow and system crash) or possibly gain privileges via a crafted NL80211_CMD_FRAME Netlink packet.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=8f44c9a41386729fea410e688959ddaa9d51be7cRefopenwall.com/lists/oss-security/2017/07/24/2Refwww.debian.org/security/2017/dsa-3927Refwww.debian.org/security/2017/dsa-3945Refwww.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.3Refwww.securityfocus.com/bid/99955Refwww.securitytracker.com/id/1038981Refaccess.redhat.com/errata/RHSA-2017:2863Refaccess.redhat.com/errata/RHSA-2017:2918Refaccess.redhat.com/errata/RHSA-2017:2930

How CyberStrike helps

Frequently asked questions

What is CVE-2017-7541?

CVE-2017-7541 is a high-severity vulnerability. It was published on July 25, 2017 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2017-7541?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-7541?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-7541?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-7541 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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