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NVD / CVE Program· CNA Linux

CVE-2021-47210: usb: typec: tipd: Remove WARN_ON in tps6598x_block_read

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.22% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 2a897d384513ba7f7ef05611338b9a6ec6aeac00, 2c71811c963b6c310a29455d521d31a7ea6c5b5e, 30dcfcda8992dc42f18e7d35b6a1fa72372d382d.
  • Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 2a897d384513ba7f7ef05611338b9a6ec6aeac00, 2c71811c963b6c310a29455d521d31a7ea6c5b5e, 30dcfcda8992dc42f18e7d35b6a1fa72372d382d 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: usb: typec: tipd: Remove WARN_ON in tps6598x_block_read Calling tps6598x_block_read with a higher than allowed len can be handled by just returning an error. There's no need to crash systems with panic-on-warn enabled.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Apr 10, 2024
Updated
Aug 11, 2026
EPSS
0.2% · 13th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

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-2021-47210

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.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernelbefore 4.19.218
  • linux linux kernel4.20 and later · before 5.4.162
  • linux linux kernel5.5 and later · before 5.10.82
  • linux linux kernel5.11 and later · before 5.15.5

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

    • 4.19affected
    • 8d361fa2c29dcaf258f71e70cd75ff51084c3e5e and later · before 2a897d384513ba7f7ef05611338b9a6ec6aeac00affected · git
    • 8d361fa2c29dcaf258f71e70cd75ff51084c3e5e and later · before 30dcfcda8992dc42f18e7d35b6a1fa72372d382daffected · git
    • 8d361fa2c29dcaf258f71e70cd75ff51084c3e5e and later · before eff8b7628410cb2eb562ca0d5d1f12e27063733eaffected · git
    • 8d361fa2c29dcaf258f71e70cd75ff51084c3e5e and later · before 2c71811c963b6c310a29455d521d31a7ea6c5b5eaffected · git
    • 8d361fa2c29dcaf258f71e70cd75ff51084c3e5e and later · before b7a0a63f3fed57d413bb857de164ea9c3984bc4eaffected · git
    • before 4.19not affected · semver
    • 4.19.218 and later · up to and including 4.19.*not affected · semver
    • 5.4.162 and later · up to and including 5.4.*not affected · semver
    • 5.10.82 and later · up to and including 5.10.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.15.5-15.15.5-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2021-47207Apr 10, 2024 · ALSA: gus: fix null pointer dereference on pointer block
    22Monitor
  • ← EarlierCVE-2021-47209Apr 10, 2024 · sched/fair: Prevent dead task groups from regaining cfs_rq's
    22Monitor
  • Later →CVE-2021-47211Apr 10, 2024 · ALSA: usb-audio: fix null pointer dereference on pointer cs_desc
    22Monitor

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 Linux2a897d384513ba7f7ef05611338b9a6ec6aeac00Vendor (CNA)
Linux Linux2c71811c963b6c310a29455d521d31a7ea6c5b5eVendor (CNA)
Linux Linux30dcfcda8992dc42f18e7d35b6a1fa72372d382dVendor (CNA)
Linux Linuxb7a0a63f3fed57d413bb857de164ea9c3984bc4eVendor (CNA)
Linux Linuxeff8b7628410cb2eb562ca0d5d1f12e27063733eVendor (CNA)
debian:linux5.15.5-1 · 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.

No history yet (it accumulates with the daily EPSS job).

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

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

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • 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
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

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

nvd-primary

Attack context

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

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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

References

Show all references (4 more)

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

All records