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NVD / CVE Program· CNA Linux

CVE-2023-53309: drm/radeon: Fix integer overflow in radeon_cs_parser_init

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: 0.16% (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 25e634d7f44eb13113139040e5366bebe48c882f, 2e1be420b86980c25a75325e90dfc3fc73126f61, b8fab6aebdf2115ec2d7bd2f3498d5b911ff351e.

Low priority for now. Upgrade to Linux Linux 25e634d7f44eb13113139040e5366bebe48c882f, 2e1be420b86980c25a75325e90dfc3fc73126f61, b8fab6aebdf2115ec2d7bd2f3498d5b911ff351e 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: drm/radeon: Fix integer overflow in radeon_cs_parser_init The type of size is unsigned, if size is 0x40000000, there will be an integer overflow, size will be zero after size *= sizeof(uint32_t), will cause uninitialized memory to be referenced later

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Sep 16, 2025
Updated
Jun 17, 2026
EPSS
0.1% · 5th 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 · 0.1%

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-2023-53309

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 4.14.324
  • linux linux kernel4.15 and later · before 4.19.293
  • linux linux kernel4.20 and later · before 5.4.255
  • linux linux kernel5.5 and later · before 5.10.192
  • linux linux kernel5.11 and later · before 5.15.123
  • linux linux kernel5.16 and later · before 6.1.42
  • linux linux kernel6.2 and later · before 6.4.7

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

    • 3.13affected
    • 28a326c592e3e444c59f28b3e60c3b07692928d6 and later · before d05ba46134d07e889de7d23cf8503574a22ede09affected · git
    • 28a326c592e3e444c59f28b3e60c3b07692928d6 and later · before cfa9148bafb2d3292b65de1bac79dcca65be2643affected · git
    • 28a326c592e3e444c59f28b3e60c3b07692928d6 and later · before b8fab6aebdf2115ec2d7bd2f3498d5b911ff351eaffected · git
    • 28a326c592e3e444c59f28b3e60c3b07692928d6 and later · before e6825b30d37fe89ceb87f926d33d4fad321a331eaffected · git
    • 28a326c592e3e444c59f28b3e60c3b07692928d6 and later · before c0d7dbc6b7a61a56028118c00af2c8319d44a682affected · git
    • 28a326c592e3e444c59f28b3e60c3b07692928d6 and later · before 2e1be420b86980c25a75325e90dfc3fc73126f61affected · git
    • 28a326c592e3e444c59f28b3e60c3b07692928d6 and later · before 25e634d7f44eb13113139040e5366bebe48c882faffected · git
    • 28a326c592e3e444c59f28b3e60c3b07692928d6 and later · before f828b681d0cd566f86351c0b913e6cb6ed8c7b9caffected · git
    • before 3.13not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.52-16.1.52-1
Debian:13linuxbefore 6.4.11-16.4.11-1

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-2023-53307Sep 16, 2025 · rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails
    31Monitor
  • ← EarlierCVE-2023-53308Sep 16, 2025 · net: fec: Better handle pm_runtime_get() failing in .remove()
    31Monitor
  • Later →CVE-2023-53310Sep 16, 2025 · power: supply: axp288_fuel_gauge: Fix external_power_changed race
    18Monitor

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 Linux25e634d7f44eb13113139040e5366bebe48c882fVendor (CNA)
Linux Linux2e1be420b86980c25a75325e90dfc3fc73126f61Vendor (CNA)
Linux Linuxb8fab6aebdf2115ec2d7bd2f3498d5b911ff351eVendor (CNA)
Linux Linuxc0d7dbc6b7a61a56028118c00af2c8319d44a682Vendor (CNA)
Linux Linuxcfa9148bafb2d3292b65de1bac79dcca65be2643Vendor (CNA)
Linux Linuxd05ba46134d07e889de7d23cf8503574a22ede09Vendor (CNA)
Linux Linuxe6825b30d37fe89ceb87f926d33d4fad321a331eVendor (CNA)
Linux Linuxf828b681d0cd566f86351c0b913e6cb6ed8c7b9cVendor (CNA)
debian:linux6.1.52-1 · 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.

  • CVE-2026-31633220 days apartrxrpc: Fix integer overflow in rxgk_verify_response()
    39Monitor
  • CVE-2026-31649220 days apartnet: stmmac: fix integer underflow in chain mode
    39Monitor
  • CVE-2026-31659220 days apartbatman-adv: reject oversized global TT response buffers
    39Monitor
  • CVE-2026-43341234 days apartnet/ipv6: ioam6: prevent schema length wraparound in trace fill
    39Monitor
  • CVE-2026-46039253 days apartrxgk: Fix potential integer overflow in length check
    39Monitor
  • CVE-2026-46325266 days apartRDMA/rxe: Fix iova-to-va conversion for MR page sizes != PAGE_SIZE
    39Monitor

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
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-190 · Integer Overflow or Wraparound

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 (7 more)

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

All records