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NVD / CVE Program· CNA Linux

CVE-2026-72378: afs: Fix error code in afs_extract_vl_addrs()

HighCVSS 7.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 30/100)

  • 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: 0.71% (FIRST EPSS); higher than 54.2% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 4897cb71d4ab1f7e1a214adb1e4b80176702368d, 4e0b047848a855f2c933a6439f76a01743ba5620, 7ce6737a975ea3e0dc2e5946628d233779ca0caf.

Low priority for now. Upgrade to Linux Linux 4897cb71d4ab1f7e1a214adb1e4b80176702368d, 4e0b047848a855f2c933a6439f76a01743ba5620, 7ce6737a975ea3e0dc2e5946628d233779ca0caf 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: afs: Fix error code in afs_extract_vl_addrs() The error codes on these paths are only set on the first iteration through the loop. Set the correct error code on every iteration.

Published
Aug 15, 2026
Updated
Aug 17, 2026
EPSS
0.7% · 54th percentile
CWE
—

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.7%

CNA vs NVD score

NVD
—
CNA · Linux
7.5
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-72378

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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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

    • 4.20affected
    • 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and later · before 7ce6737a975ea3e0dc2e5946628d233779ca0cafaffected · git
    • 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and later · before 4e0b047848a855f2c933a6439f76a01743ba5620affected · git
    • 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and later · before f70fbf2b974b63a7042705c2b0464cb8c97e9f34affected · git
    • 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and later · before 9ad9016e3333c3c1f9284a253ff0658369e07aacaffected · git
    • 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and later · before cb33dd2968588c78fad78dec19f61cabe5785494affected · git
    • 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and later · before 8530206911fd66ad739ca5ce95f1d069f3d42204affected · git
    • 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and later · before bdcd80ff12939d172043fac5eb822b92366a1babaffected · git
    • 0a5143f2f89cc88d8a3eada8e8ccd86c1e988257 and later · before 4897cb71d4ab1f7e1a214adb1e4b80176702368daffected · git
    • before 4.20not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.180-16.1.180-1
Debian:13linuxbefore 6.12.100-16.12.100-1
Debian:14linuxbefore 7.1.5-17.1.5-1

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-2026-72376Aug 15, 2026 · afs: Fix misplaced inc of net->cells_outstanding
    0Monitor
  • ← EarlierCVE-2026-72377Aug 15, 2026 · afs: Remove setting of AS_RELEASE_ALWAYS for symlinks and mountpoints
    0Monitor
  • Later →CVE-2026-72381Aug 15, 2026 · ksmbd: fix use-after-free of fp->owner.name in durable handle owner check
    39Monitor

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 Linux4897cb71d4ab1f7e1a214adb1e4b80176702368dVendor (CNA)
Linux Linux4e0b047848a855f2c933a6439f76a01743ba5620Vendor (CNA)
Linux Linux7ce6737a975ea3e0dc2e5946628d233779ca0cafVendor (CNA)
Linux Linux8530206911fd66ad739ca5ce95f1d069f3d42204Vendor (CNA)
Linux Linux9ad9016e3333c3c1f9284a253ff0658369e07aacVendor (CNA)
Linux Linuxbdcd80ff12939d172043fac5eb822b92366a1babVendor (CNA)
Linux Linuxcb33dd2968588c78fad78dec19f61cabe5785494Vendor (CNA)
Linux Linuxf70fbf2b974b63a7042705c2b0464cb8c97e9f34Vendor (CNA)
debian:linux6.1.180-1 · 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.

No dated events beyond publication.

EPSS, last 120 days+1% in 7 days

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

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

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd-secondary

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 (7 more)

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

All records