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NVD / CVE Program· CNA Linux

CVE-2026-80524: optee: ffa: Add NULL check in optee_ffa_lend_protmem

—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.16% (FIRST EPSS).
  • Fixed version: Linux Linux 0977a6f23439616701282fc4cb38eca40f36fec6, 650c88738ae8976f46ba71b24dd8aa311adc6fde, 94bf4fe0e46349c4e73df66dcda073187bc90cc1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 0977a6f23439616701282fc4cb38eca40f36fec6, 650c88738ae8976f46ba71b24dd8aa311adc6fde, 94bf4fe0e46349c4e73df66dcda073187bc90cc1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: optee: ffa: Add NULL check in optee_ffa_lend_protmem Sashiko (locally) reports a possible null dereference under memory pressure due to the lack of validation of the allocated pointer. Fix that by adding the missing check.

Published
Aug 26, 2026
Updated
Oct 15, 2026
EPSS
0.1% · 5th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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  • Not in KEV: no record of exploitation in the wild
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  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 6.18affected
    • 2b78d79cdf963e09ec8b90c55216b6ab5a83dbaf and later · before 0977a6f23439616701282fc4cb38eca40f36fec6affected · git
    • 2b78d79cdf963e09ec8b90c55216b6ab5a83dbaf and later · before 94bf4fe0e46349c4e73df66dcda073187bc90cc1affected · git
    • 2b78d79cdf963e09ec8b90c55216b6ab5a83dbaf and later · before 650c88738ae8976f46ba71b24dd8aa311adc6fdeaffected · git
    • before 6.18not affected · semver
    • 6.18.57 and later · up to and including 6.18.*not affected · semver
    • 7.1.10 and later · up to and including 7.1.*not affected · semver
    • 7.2 and laternot affected · original_commit_for_fix

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:14linuxbefore 7.1.10-17.1.10-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-80521Aug 26, 2026 · af_unix: Unlink scc_entry in unix_del_edge().
    31Monitor
  • ← EarlierCVE-2026-80522Aug 26, 2026 · crypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req()
    31Monitor
  • Later →CVE-2026-80526Aug 26, 2026 · ASoC: tas2562: Validate values for volume writes
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux0977a6f23439616701282fc4cb38eca40f36fec6Vendor (CNA)
Linux Linux650c88738ae8976f46ba71b24dd8aa311adc6fdeVendor (CNA)
Linux Linux94bf4fe0e46349c4e73df66dcda073187bc90cc1Vendor (CNA)
debian:linux7.1.10-1 · Debian:14Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Not on record for this CVE: patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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