Linux Kernel up to 7.1.4 batman-adv batadv_get_vid use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.5$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as very critical, was found in Linux Kernel up to 7.1.4. Affected is the function batadv_get_vid of the component batman-adv. Executing a manipulation can lead to use after free. This vulnerability appears as CVE-2026-80601. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.1.4. It has been declared as very critical. This vulnerability affects the function batadv_get_vid of the component batman-adv. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: batman-adv: gw: acquire ethernet header only after skb realloc The pskb_may_pull() called by batadv_get_vid() could reallocate the buffer behind the skb. Variables which were pointing to the old buffer need to be reassigned to avoid an use-after-free.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2026-80601 since 08/26/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/01/2026).

The vulnerability scanner Nessus provides a plugin with the ID 342019 (Linux Distros Unpatched Vulnerability : CVE-2026-80601), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.97, 6.18.40 or 7.1.5 eliminates this vulnerability. Applying the patch 2760b38222c8828b075802342fe3b91eb823d542/6c37f1166549c999ccd164b0cb6462d1ae68f8f6/b79884a5567bf788fb76c30832467cf6a56f3c0d/afac8096bde4948e3caa7e4dd733867cfbd3018e/e3f4325e35dd6e76b80665f3510738ce34819753/e6b43acd34b219b807e65096ce207b087942779d/916dac5f2944f63f07f7b501acbea6737dbbed0e/77880a3be88d378d60cc1e8f8ec70430e2ed0518 is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (342019) and CERT Bund (WID-SEC-2026-3075). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Open Source Linux Kernel

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.5

VulDB Base Score: 9.9
VulDB Temp Score: 9.5
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: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 342019
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-80601

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.261/5.15.212/6.1.178/6.6.145/6.12.97/6.18.40/7.1.5
Patch: 2760b38222c8828b075802342fe3b91eb823d542/6c37f1166549c999ccd164b0cb6462d1ae68f8f6/b79884a5567bf788fb76c30832467cf6a56f3c0d/afac8096bde4948e3caa7e4dd733867cfbd3018e/e3f4325e35dd6e76b80665f3510738ce34819753/e6b43acd34b219b807e65096ce207b087942779d/916dac5f2944f63f07f7b501acbea6737dbbed0e/77880a3be88d378d60cc1e8f8ec70430e2ed0518

Timelineinfo

08/26/2026 CVE reserved
08/28/2026 +2 days Advisory disclosed
08/28/2026 +0 days VulDB entry created
09/01/2026 +4 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-80601 (🔒)
GCVE (CVE): GCVE-0-2026-80601
GCVE (VulDB): GCVE-100-396538
CERT Bund: WID-SEC-2026-3075 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 08/28/2026 10:01
Updated: 09/01/2026 20:17
Changes: 08/28/2026 10:01 (59), 08/28/2026 21:12 (7), 09/01/2026 20:17 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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