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NVD / CVE Program· CNA Linux

CVE-2024-53203: usb: typec: fix potential array underflow in ucsi_ccg_sync_control()

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.27% (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 0e66fd8e5a2e45c7dacfc9178ba702153f4a61a8, 56971710cd541f2f05160a84b3183477d34a1be9, 627c2a5056aba42a8a96a8fffe8996aeccf919a9; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.90.1-1; cbl2 kernel 5.15.182.1-1 on CBL Mariner 2.0 CBL-Mariner Releases.

Low priority for now. Upgrade to Linux Linux 0e66fd8e5a2e45c7dacfc9178ba702153f4a61a8, 56971710cd541f2f05160a84b3183477d34a1be9, 627c2a5056aba42a8a96a8fffe8996aeccf919a9; azl3 kernel 6.6.92.2-1 on Azure Linux 3.0 6.6.90.1-1; cbl2 kernel 5.15.182.1-1 on CBL Mariner 2.0 CBL-Mariner Releases 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: fix potential array underflow in ucsi_ccg_sync_control() The "command" variable can be controlled by the user via debugfs. The worry is that if con_index is zero then "&uc->ucsi->connector[con_index - 1]" would be an array underflow.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
Dec 27, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 19th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
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

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

Follow CVE-2024-53203

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 kernel5.6 and later · before 6.11.11
  • linux linux kernel6.12 and later · before 6.12.2

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

    • 5.6affected
    • 170a6726d0e266f2c8f306e3d61715c32f4ee41e and later · before 627c2a5056aba42a8a96a8fffe8996aeccf919a9affected · git
    • 170a6726d0e266f2c8f306e3d61715c32f4ee41e and later · before e15fd96c0b701c53f9006bcc836eaeb35a05a023affected · git
    • 170a6726d0e266f2c8f306e3d61715c32f4ee41e and later · before e44189455c62469eb91d383ce9103d54c1f807a3affected · git
    • 170a6726d0e266f2c8f306e3d61715c32f4ee41e and later · before 0e66fd8e5a2e45c7dacfc9178ba702153f4a61a8affected · git
    • 170a6726d0e266f2c8f306e3d61715c32f4ee41e and later · before ef92cd55289a282910575c5b9d87f646f2d39b38affected · git
    • 170a6726d0e266f2c8f306e3d61715c32f4ee41e and later · before 56971710cd541f2f05160a84b3183477d34a1be9affected · git
    • 170a6726d0e266f2c8f306e3d61715c32f4ee41e and later · before e56aac6e5a25630645607b6856d4b2a17b2311a5affected · git
    • before 5.6not affected · semver
    • 5.10.238 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:11linux-6.1before 6.1.140-1~deb11u16.1.140-1~deb11u1
Debian:12linuxbefore 6.1.140-16.1.140-1
Debian:13linuxbefore 6.12.3-16.12.3-1
SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6kernel-cocobefore 6.4.0-15061.15.coco15sp6.16.4.0-15061.15.coco15sp6.1
SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6kernel-coco_debugbefore 6.4.0-15061.15.coco15sp6.16.4.0-15061.15.coco15sp6.1
SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6kernel-source-cocobefore 6.4.0-15061.15.coco15sp6.16.4.0-15061.15.coco15sp6.1
SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6kernel-syms-cocobefore 6.4.0-15061.15.coco15sp6.16.4.0-15061.15.coco15sp6.1

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-2024-53200Dec 27, 2024 · drm/amd/display: Fix null check for pipe_ctx->plane_state in hwss_setup_dpp
    22Monitor
  • ← EarlierCVE-2024-53202Dec 27, 2024 · firmware_loader: Fix possible resource leak in fw_log_firmware_info()
    22Monitor
  • Later →CVE-2024-53204Dec 27, 2024 · phy: realtek: usb: fix NULL deref in rtk_usb3phy_probe
    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 Linux0e66fd8e5a2e45c7dacfc9178ba702153f4a61a8Vendor (CNA)
Linux Linux56971710cd541f2f05160a84b3183477d34a1be9Vendor (CNA)
Linux Linux627c2a5056aba42a8a96a8fffe8996aeccf919a9Vendor (CNA)
Linux Linuxe15fd96c0b701c53f9006bcc836eaeb35a05a023Vendor (CNA)
Linux Linuxe44189455c62469eb91d383ce9103d54c1f807a3Vendor (CNA)
Linux Linuxe56aac6e5a25630645607b6856d4b2a17b2311a5Vendor (CNA)
Linux Linuxef92cd55289a282910575c5b9d87f646f2d39b38Vendor (CNA)
azl3 kernel 6.6.92.2-1 on Azure Linux 3.06.6.90.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.182.1-1 on CBL Mariner 2.0CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.182.1-1 on CBL-Mariner 2.05.15.184.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
debian:linux6.1.140-1 · Debian:12Package registry (OSV)
debian:linux-6.16.1.140-1~deb11u1 · Debian:11Package registry (OSV)
suse:kernel-coco6.4.0-15061.15.coco15sp6.1 · SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6Package registry (OSV)
suse:kernel-coco_debug6.4.0-15061.15.coco15sp6.1 · SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6Package registry (OSV)
suse:kernel-source-coco6.4.0-15061.15.coco15sp6.1 · SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6Package registry (OSV)
suse:kernel-syms-coco6.4.0-15061.15.coco15sp6.1 · SUSE:Linux Enterprise Module for Confidential Computing Technical Preview 15 SP6Package 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.

  • CVE-2021-47548217 days apartethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()
    39Monitor
  • CVE-2026-23246446 days apartwifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration
    35Monitor
  • CVE-2026-43110495 days apartwifi: brcmfmac: validate bsscfg indices in IF events
    35Monitor
  • CVE-2026-43172495 days apartwifi: iwlwifi: fix 22000 series SMEM parsing
    35Monitor
  • CVE-2024-565980 days apartjfs: array-index-out-of-bounds fix in dtReadFirst
    31Monitor
  • CVE-2024-566080 days apartdrm/amd/display: Fix out-of-bounds access in 'dcn21_link_encoder_create'
    31Monitor

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

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
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-129 · Improper Validation of Array Index

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 (8 more)

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

All records