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CVE.org (no NVD analysis yet)· CNA Linux

CVE-2026-98778: binder: fix is_failure flag for superseded transaction cleanup

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: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 1ab671b50714ad8e359cf37eb041d8044319ccdc, 22c135635fdd9816c0ef140d6de7b2e4fdf73e89, 60a9f7323ae7318a7cce0d387c318da24f1e8726; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes.

Low priority for now. Upgrade to Linux Linux 1ab671b50714ad8e359cf37eb041d8044319ccdc, 22c135635fdd9816c0ef140d6de7b2e4fdf73e89, 60a9f7323ae7318a7cce0d387c318da24f1e8726; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes 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In the Linux kernel, the following vulnerability has been resolved: binder: fix is_failure flag for superseded transaction cleanup When a TF_UPDATE_TXN transaction supersedes a pending async transaction, binder_release_entire_buffer() is called with is_failure=false. Since the superseded transaction was never delivered, binder_apply_fd_fixups() was never called and no fds were installed in the target process. With is_failure=false, the BINDER_TYPE_FDA cleanup handler interprets stale buffer contents as installed fd numbers and passes them to binder_deferred_fd_close(), closing unrelated file descriptors. Pass is_failure=true since the transaction was never delivered to the target, matching the semantics of all other undelivered-transaction cleanup paths.

—No exploit Fix available
Published
Oct 18, 2026
Updated
Oct 30, 2026
EPSS
0.1% · 6th 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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  • A fix has been released

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Noroxi analysis

What does it mean in your environment?

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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

    • 6.0affected
    • 9864bb4801331daa48514face9d0f4861e4d485b and later · before f4c072e544b8c15e6b9157208761db6fa4fe95a1affected · git
    • 9864bb4801331daa48514face9d0f4861e4d485b and later · before e9b364e46d594c2ec663c9c49f10c1ca541ecc0faffected · git
    • 9864bb4801331daa48514face9d0f4861e4d485b and later · before 60a9f7323ae7318a7cce0d387c318da24f1e8726affected · git
    • 9864bb4801331daa48514face9d0f4861e4d485b and later · before 86cdcc87d4ba60aebf94ba3346b3c900c5cd79ffaffected · git
    • 9864bb4801331daa48514face9d0f4861e4d485b and later · before 1ab671b50714ad8e359cf37eb041d8044319ccdcaffected · git
    • 9864bb4801331daa48514face9d0f4861e4d485b and later · before 22c135635fdd9816c0ef140d6de7b2e4fdf73e89affected · git
    • before 6.0not affected · semver
    • 6.1.191 and later · up to and including 6.1.*not affected · semver
    • 6.6.160 and later · up to and including 6.6.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.10-17.2.10-1

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-2026-98776Oct 18, 2026 · binderfs: fix UAF write in binder_add_device
    0Monitor
  • ← EarlierCVE-2026-98777Oct 18, 2026 · binder: fix leaked fd fixups on TF_UPDATE_TXN supersede
    0Monitor
  • Later →CVE-2026-98779Oct 18, 2026 · drm/amdgpu: fix ACP MFD device leak on init failure
    0Monitor

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 Linux1ab671b50714ad8e359cf37eb041d8044319ccdcVendor (CNA)
Linux Linux22c135635fdd9816c0ef140d6de7b2e4fdf73e89Vendor (CNA)
Linux Linux60a9f7323ae7318a7cce0d387c318da24f1e8726Vendor (CNA)
Linux Linux86cdcc87d4ba60aebf94ba3346b3c900c5cd79ffVendor (CNA)
Linux Linuxe9b364e46d594c2ec663c9c49f10c1ca541ecc0fVendor (CNA)
Linux Linuxf4c072e544b8c15e6b9157208761db6fa4fe95a1Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
debian:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.113-1~deb12u1 · Debian:12Package 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.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 6, 2026+19 d
EPSS, last 120 days

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

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

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.

Change log

  1. Exploit maturity— → none
  2. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (5 more)

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

All records