Linux Kernel up to 6.19.3 bpf map_direct_value_addr privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.19.3. Impacted is the function map_direct_value_addr of the component bpf. Performing a manipulation results in an unknown weakness. This vulnerability is known as CVE-2026-45967. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 6.19.3. This affects the function map_direct_value_addr of the component bpf. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: bpf: Return proper address for non-zero offsets in insn array The map_direct_value_addr() function of the instruction array map incorrectly adds offset to the resulting address. This is a bug, because later the resolve_pseudo_ldimm64() function adds the offset. Fix it. Corresponding selftests are added in a consequent commit.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2026-45967 since 05/13/2026. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/16/2026).

Upgrading to version 6.19.4 eliminates this vulnerability. Applying the patch 73ef43202a37d779a8e665a0acae214fa59df9fb/e3bd7bdf5ffe49d8381e42843f6e98cd0c78a1e8 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. 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

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

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 6.19.4
Patch: 73ef43202a37d779a8e665a0acae214fa59df9fb/e3bd7bdf5ffe49d8381e42843f6e98cd0c78a1e8

Timelineinfo

05/13/2026 CVE reserved
05/27/2026 +14 days Advisory disclosed
05/27/2026 +0 days VulDB entry created
06/16/2026 +20 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-45967 (🔒)
GCVE (CVE): GCVE-0-2026-45967
GCVE (VulDB): GCVE-100-366195

Entryinfo

Created: 05/27/2026 17:10
Updated: 06/16/2026 09:01
Changes: 05/27/2026 17:10 (58), 06/16/2026 09:01 (10)
Complete: 🔍
Cache ID: 216::103

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