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

CVE-2026-98572: bpf: Fix immediate JMP JEQ/JNE on MIPS32

—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: 0.21% (FIRST EPSS).
  • Fixed version: Linux Linux 1547e9f3a7d71971216e6dba30270cae13fe4e02, 1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8, 6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 1547e9f3a7d71971216e6dba30270cae13fe4e02, 1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8, 6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1 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: bpf: Fix immediate JMP JEQ/JNE on MIPS32 An addu instruction was emitted instead of addiu, causing the immediate value 1 to be interpreted as register $at. This made the comparison result invalid when the immediate operand was negative. Note that $at is mapped to BPF_REG_AX, which is used for constant blinding. Fix the instruction to use the immediate form. Found with test_bpf on MIPS32r1 emulated by QEMU.

Published
Oct 18, 2026
Updated
Oct 19, 2026
EPSS
0.2% · 11th 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 · 0.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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Follow CVE-2026-98572

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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

    • 5.16affected
    • eb63cfcd2ee8ec3805f6881f43341f589c3d2278 and later · before 1547e9f3a7d71971216e6dba30270cae13fe4e02affected · git
    • eb63cfcd2ee8ec3805f6881f43341f589c3d2278 and later · before beeae92e70e705e90a0d6d9b3b8498ee3b92f495affected · git
    • eb63cfcd2ee8ec3805f6881f43341f589c3d2278 and later · before 6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0affected · git
    • eb63cfcd2ee8ec3805f6881f43341f589c3d2278 and later · before 876ef04c75c2751acfd355606fca3eced71dec65affected · git
    • eb63cfcd2ee8ec3805f6881f43341f589c3d2278 and later · before 1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8affected · git
    • eb63cfcd2ee8ec3805f6881f43341f589c3d2278 and later · before db762fd96be225bd06161c9631160c755d891693affected · git
    • before 5.16not affected · semver
    • 6.1.189 and later · up to and including 6.1.*not affected · semver
    • 6.6.158 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:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.9-17.2.9-1

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-2026-98570Oct 18, 2026 · net: ipv6: keep room for the mac header in dst_dev_overhead()
    0Monitor
  • ← EarlierCVE-2026-98571Oct 18, 2026 · net: stmmac: clear stale buf->page after recycling on skb build failure
    0Monitor
  • Later →CVE-2026-98573Oct 18, 2026 · net: skbuff: fix pull-bound underflow in skb_checksum_setup_ipv6()
    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 Linux1547e9f3a7d71971216e6dba30270cae13fe4e02Vendor (CNA)
Linux Linux1bd91670966a7142ac94f2cebe2b5ae6bf5cb0c8Vendor (CNA)
Linux Linux6f939529ed6c580e9b6c5daa20be67fa0b3d4cf0Vendor (CNA)
Linux Linux876ef04c75c2751acfd355606fca3eced71dec65Vendor (CNA)
Linux Linuxbeeae92e70e705e90a0d6d9b3b8498ee3b92f495Vendor (CNA)
Linux Linuxdb762fd96be225bd06161c9631160c755d891693Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.159.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package 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 13, 2026+26 d
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 (5 more)

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

All records