Unknown

CVE-2026-80913 — selinux: require every boolean value to be defined

In the Linux kernel, the following vulnerability has been resolved: selinux: require every boolean value to be defined p_bools.nprim comes from the policy image independently of how many booleans follow it, and cond_index_bool() fills bool_val_to_struct[] at value - 1, so a count larger than the values present leaves NULL entries. Every user of that array then walks it by index and dereferences each entry: cond_evaluate_expr() on the access-vector path, security_get_bools() and security_get_bool_value() behind selinuxfs, and security_set_bools(). A sparse class value is absorbed by policydb_class_isvalid() and its siblings; booleans have no such predicate, and no consumer that could use one. Reject a boolean value that no boolean defines, once, where the array is built. Conforming policies define every boolean they declare and are unaffected.

Published Sep 4, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: Linux

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.2% (30-day exploitation probability)+1

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.17%

ahead of 6% of scored CVEs · Oct 26, 2026

Affects

Linux

CVSS base

—

Score not published yet.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Linux	Linux	≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < 4d0ece18e648bd4362704fd087249ac697f2b7fb≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < 3938c8494d3c5d84a53fd7d1966ae9dde46cb5f8≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < 4dfb997c60f7951011d3dcbee926e3a7f80d8a76≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < 3161daa3f1e3ca68f8b2b8fa01720b5a8dcc6b40≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < 740012aebdb8311332bf66e2aabf453ba73c2c45≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < 42a7107f99d86a7524c37f108047dfa3db096ab5≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < ed901e88aa3fb3d5d7b0b52c2ee3073209df9bec≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and < a93d37a09b863810653f93d371fb197457d59deb and 1 more version 2.6.12	Vulnerable	CVE Program (cve.org) e CISA ADP

EPSS over time FIRST

Oct 15, 2026 → Oct 26, 2026 · 11 reading(s) · max 0.17%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Not enough vector or weakness data: use the affected application’s logs as a starting point.

application logs

Timeline

What happened to this CVE, newest first.

2026
Record published
Oct 15, 2026
Affected products added · linux/linux
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Received
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Sep 4, 2026 · Linux

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

8 on the record

git.kernel.org/stable/c/42a7107f99d86a7524c37f108047dfa3db096ab5
NIST National Vulnerability Database
git.kernel.org/stable/c/a93d37a09b863810653f93d371fb197457d59deb
NIST National Vulnerability Database
git.kernel.org/stable/c/ed901e88aa3fb3d5d7b0b52c2ee3073209df9bec
NIST National Vulnerability Database
git.kernel.org/stable/c/4dfb997c60f7951011d3dcbee926e3a7f80d8a76
NIST National Vulnerability Database
git.kernel.org/stable/c/3161daa3f1e3ca68f8b2b8fa01720b5a8dcc6b40
NIST National Vulnerability Database
git.kernel.org/stable/c/3938c8494d3c5d84a53fd7d1966ae9dde46cb5f8
NIST National Vulnerability Database
git.kernel.org/stable/c/740012aebdb8311332bf66e2aabf453ba73c2c45
NIST National Vulnerability Database
git.kernel.org/stable/c/4d0ece18e648bd4362704fd087249ac697f2b7fb
NIST National Vulnerability Database

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

Unknown CVE-2026-99092 riscv: patch: fix handling of bpf-jit execmem addresses 20h
Unknown CVE-2026-99093 mm: don't schedule deferred kernel page table freeing while booting 20h
Unknown CVE-2026-99095 drm/vc4: drain the hangcheck timer and works on V3D unbind 20h
Unknown CVE-2026-99096 io_uring/register: don't exempt disabled rings from task restrictions 20h
Unknown CVE-2026-99097 tee: shm: reject zero-sized allocations in tee_dyn_shm_alloc_helper() 20h
Unknown CVE-2026-99098 dm-integrity: fix buffer overflow in inline mode with large tag size 20h

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No CVSS score published by NVD, the CNA, CISA or GitHub so far.
No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-80913 is "selinux: require every boolean value to be defined", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.17% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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