Linux Kernel up to 6.12.111/6.18.53/7.2.7/7.3-rc3 mac80211 injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.7$0-$5k0.88

Summaryinfo

A vulnerability has been found in Linux Kernel up to 6.12.111/6.18.53/7.2.7/7.3-rc3 and classified as problematic. The impacted element is an unknown function of the component mac80211. The manipulation leads to injection. This vulnerability is traded as CVE-2026-98329. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.111/6.18.53/7.2.7/7.3-rc3. It has been rated as problematic. This issue affects an unknown part of the component mac80211. The manipulation with an unknown input leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: don't allow injecting frames wider than the chanctx Frames injected on a monitor interface can carry a radiotap field requesting a bandwidth, which mac80211 passes down to the driver regardless of the the actual operational bandwidth. If the bandwidth requested is too wide, that triggers a warning in hwsim: WARN_ON(hwsim_get_chanwidth(bw) > hwsim_get_chanwidth(confbw)) Drop such frames entirely instead since they cannot be sent.

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2026-98329 since 09/25/2026. The exploitation is known to be easy. The attack may be initiated remotely. Additional levels of successful authentication are needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/06/2026). The attack technique deployed by this issue is T1055 according to MITRE ATT&CK.

Upgrading to version 6.12.112, 6.18.54, 7.2.8 or 7.3-rc4 eliminates this vulnerability. Applying the patch a5c715eda066cba5ce3372759188ba8636dca629/73f48f7e16cadfc74f444ccd10c1d3ae253e2e27/c69718519a81e87284494d0c6e6eb7bdd834707a/e14bf37bb2b3853012ff160131d1c6233f7a9cc9 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.9
VulDB Temp Score: 4.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Injection
CWE: CWE-74 / CWE-707 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.12.112/6.18.54/7.2.8/7.3-rc4
Patch: a5c715eda066cba5ce3372759188ba8636dca629/73f48f7e16cadfc74f444ccd10c1d3ae253e2e27/c69718519a81e87284494d0c6e6eb7bdd834707a/e14bf37bb2b3853012ff160131d1c6233f7a9cc9

Timelineinfo

09/25/2026 CVE reserved
10/06/2026 +11 days Advisory disclosed
10/06/2026 +0 days VulDB entry created
10/06/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-98329 (🔒)
GCVE (CVE): GCVE-0-2026-98329
GCVE (VulDB): GCVE-100-414179

Entryinfo

Created: 10/06/2026 13:26
Changes: 10/06/2026 13:26 (58)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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