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NVD / CVE Program· CNA Linux

CVE-2025-68255: staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing

Noroxi assessment

Priority: Monitor (action score 35/100)

  • 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: 0.36% (FIRST EPSS).
  • Someone on the same network segment 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 25411f5fcf5743131158f337c99c2bbf3f8477f5, 34620eb602aa432f090b2b784ee5c5070fb16cf9, 4445adedae770037078803d1ce41f9e88a1944b6.

Low priority for now. Upgrade to Linux Linux 25411f5fcf5743131158f337c99c2bbf3f8477f5, 34620eb602aa432f090b2b784ee5c5070fb16cf9, 4445adedae770037078803d1ce41f9e88a1944b6 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: staging: rtl8723bs: fix stack buffer overflow in OnAssocReq IE parsing The Supported Rates IE length from an incoming Association Request frame was used directly as the memcpy() length when copying into a fixed-size 16-byte stack buffer (supportRate). A malicious station can advertise an IE length larger than 16 bytes, causing a stack buffer overflow. Clamp ie_len to the buffer size before copying the Supported Rates IE, and correct the bounds check when merging Extended Supported Rates to prevent a second potential overflow. This prevents kernel stack corruption triggered by malformed association requests.

HighCVSS 8.8 · v3.1—No exploit Fix available
Published
Dec 16, 2025
Updated
Oct 14, 2026
EPSS
0.3% · 30th percentile
CWE
—

Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CNA vs NVD score

NVD
—
CNA · Linux
8.8
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-2025-68255

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

    • 4.12affected
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 49b7806851f93fd342838c93f4f765e0cc5029b0affected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 4445adedae770037078803d1ce41f9e88a1944b6affected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before d129dc2a5d59b4d9cd2cc0b6eeb04df8461199f0affected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 34620eb602aa432f090b2b784ee5c5070fb16cf9affected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 61871c83259a511980ec2664964cecc69005398baffected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 25411f5fcf5743131158f337c99c2bbf3f8477f5affected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before e841d8ea722315b781c4fc5bf4f7670fbca88875affected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 6ef0e1c10455927867cac8f0ed6b49f328f8cf95affected · git
    • before 4.12not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.162-16.1.162-1
Debian:13linuxbefore 6.12.63-16.12.63-1
Debian:14linuxbefore 6.17.12-16.17.12-1
openSUSE:Tumbleweedkernel-sourcebefore 6.18.2-1.16.18.2-1.1

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-2025-68253Dec 16, 2025 · mm: don't spin in add_stack_record when gfp flags don't allow
    0Monitor
  • ← EarlierCVE-2025-68254Dec 16, 2025 · staging: rtl8723bs: fix out-of-bounds read in OnBeacon ESR IE parsing
    28Monitor
  • Later →CVE-2025-68256Dec 16, 2025 · staging: rtl8723bs: fix out-of-bounds read in rtw_get_ie() parser
    35Monitor

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 Linux25411f5fcf5743131158f337c99c2bbf3f8477f5Vendor (CNA)
Linux Linux34620eb602aa432f090b2b784ee5c5070fb16cf9Vendor (CNA)
Linux Linux4445adedae770037078803d1ce41f9e88a1944b6Vendor (CNA)
Linux Linux49b7806851f93fd342838c93f4f765e0cc5029b0Vendor (CNA)
Linux Linux61871c83259a511980ec2664964cecc69005398bVendor (CNA)
Linux Linux6ef0e1c10455927867cac8f0ed6b49f328f8cf95Vendor (CNA)
Linux Linuxd129dc2a5d59b4d9cd2cc0b6eeb04df8461199f0Vendor (CNA)
Linux Linuxe841d8ea722315b781c4fc5bf4f7670fbca88875Vendor (CNA)
debian:linux6.1.162-1 · Debian:12Package registry (OSV)
opensuse:kernel-source6.18.2-1.1 · openSUSE:TumbleweedPackage 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).

Technical details

Attack conditions

  • Someone on the same network segment 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
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

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

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