CVE-2026-45932: linux
Vulnerability summary
CVE-2026-45932 is a high (CVSS 7.3) vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.3% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 13 · Related 13Timeline
- 27-05-2026PublishedVulnerability first disclosed.
- 21-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix tcx/netkit detach permissions when prog fd isn't given This commit fixes a security issue where BPF_PROG_DETACH on tcx or netkit devices could be executed by any user when no program fd was provided, bypassing permission checks. The fix adds a capability check for CAP_NET_ADMIN or CAP_SYS_ADMIN in this case.
CVSS metrics
6 scores · 5 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.3HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.3HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated7.3HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
- NVDNIST7.3HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
+0.05 pp
From 0.13% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu132 products
- linuxAll versions (No fix recorded)
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded)
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Chainguard5 products
- linux-aws-6.12All versions (No fix recorded)
- linux-azure-6.12All versions (No fix recorded)
- linux-gcp-6.12All versions (No fix recorded)
- linux-qemu-6.12All versions (No fix recorded)
- linux-vmware-6.12All versions (No fix recorded)
Linux2 products
- linux≥ e420bed025071a623d2720a92bc2245c84757ecb, < 8e1623e7d61faf16cbadc80550da874303611ff5 | ≥ e420bed025071a623d2720a92bc2245c84757ecb, < 0c249f523175963b0a746bba673ecebdf6cefd86 | ≥ e420bed025071a623d2720a92bc2245c84757ecb, < 4e0772cded109c238411f2fac36ac39302758b81 | ≥ e420bed025071a623d2720a92bc2245c84757ecb, < 3f04cc1e5374da4c5e791ae010a06cfea7bacbe6 | ≥ e420bed025071a623d2720a92bc2245c84757ecb, < ae23bc81ddf7c17b663c4ed1b21e35527b0a7131 | 6.6
- linux_kernel≥ 6.6, < 6.18.14 | ≥ 6.19, < 6.19.4
Debian1 product
- linuxAll versions (No fix recorded) | < 6.18.14-1
4 vendors · 140 products