NVD / CVE Program· CNA Linux

CVE-2022-48851: staging: gdm724x: fix use after free in gdm_lte_rx()

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: 0.51% (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 1fb9dd3787495b4deb0efe66c58306b65691a48f, 403e3afe241b62401de1f8629c9c6b9b3d69dbff, 48ecdf3e29a6e514e8196691589c7dfc6c4ac169.
Severity is disputed: the assigning authority (CNA) scores it 9.8, NVD 7.8.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 1fb9dd3787495b4deb0efe66c58306b65691a48f, 403e3afe241b62401de1f8629c9c6b9b3d69dbff, 48ecdf3e29a6e514e8196691589c7dfc6c4ac169 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: gdm724x: fix use after free in gdm_lte_rx() The netif_rx_ni() function frees the skb so we can't dereference it to save the skb->len.

HighCVSS 7.8 · v3.1—No exploit Fix available

Memory safety

BDU:2024-06534

Published: Jul 16, 2024
Updated: Aug 5, 2026
EPSS: 0.5% · 43th percentile
CWE: CWE-416

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.5%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 7.8
CNA · Linux: 9.8; 2.0 point gap

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

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.

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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.

Vendor	Product	CPE
linux	linux kernel	cpe:2.3:o:linux:linux_kernel

Affected versions

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

linux linux kernel3.12 and later · before 4.9.307
linux linux kernel4.10 and later · before 4.14.272
linux linux kernel4.15 and later · before 4.19.235
linux linux kernel4.20 and later · before 5.4.185
linux linux kernel5.5 and later · before 5.10.106
linux linux kernel5.11 and later · before 5.15.29
linux linux kernel5.16 and later · before 5.16.15

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
- 3.12affected
- 61e121047645122c47714fcda684d0ee67f444af and later · before 6dc7b87c62423bfa68139fe95e85028aab584c9aaffected · git
- 61e121047645122c47714fcda684d0ee67f444af and later · before 83a9c886c2b5a0d28c0b37e1736b47f38d61332aaffected · git
- 61e121047645122c47714fcda684d0ee67f444af and later · before 48ecdf3e29a6e514e8196691589c7dfc6c4ac169affected · git
- 61e121047645122c47714fcda684d0ee67f444af and later · before 403e3afe241b62401de1f8629c9c6b9b3d69dbffaffected · git
- 61e121047645122c47714fcda684d0ee67f444af and later · before 6d9700b445098dbbce0caff4b8cfca214cf1e757affected · git
- 61e121047645122c47714fcda684d0ee67f444af and later · before 1fb9dd3787495b4deb0efe66c58306b65691a48faffected · git
- 61e121047645122c47714fcda684d0ee67f444af and later · before d39dc79513e99147b4c158a8a9e46743e23944f5affected · git
- 61e121047645122c47714fcda684d0ee67f444af and later · before fc7f750dc9d102c1ed7bbe4591f991e770c99033affected · git
- before 3.12not affected · semver

Package-level exposure

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

Ecosystem	Package	Affected range	Fix
Debian:12	linux	before 5.16.18-1	5.16.18-1

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-2022-48849Jul 16, 2024 · drm/amdgpu: bypass tiling flag check in virtual display case (v2)
22Monitor
← EarlierCVE-2022-48850Jul 16, 2024 · net-sysfs: add check for netdevice being present to speed_show
22Monitor
Later →CVE-2022-48852Jul 16, 2024 · drm/vc4: hdmi: Unregister codec device on unbind
13Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Linux Linux	1fb9dd3787495b4deb0efe66c58306b65691a48f	Vendor (CNA)
Linux Linux	403e3afe241b62401de1f8629c9c6b9b3d69dbff	Vendor (CNA)
Linux Linux	48ecdf3e29a6e514e8196691589c7dfc6c4ac169	Vendor (CNA)
Linux Linux	6d9700b445098dbbce0caff4b8cfca214cf1e757	Vendor (CNA)
Linux Linux	6dc7b87c62423bfa68139fe95e85028aab584c9a	Vendor (CNA)
Linux Linux	83a9c886c2b5a0d28c0b37e1736b47f38d61332a	Vendor (CNA)
Linux Linux	d39dc79513e99147b4c158a8a9e46743e23944f5	Vendor (CNA)
Linux Linux	fc7f750dc9d102c1ed7bbe4591f991e770c99033	Vendor (CNA)
debian:linux	5.16.18-1 · Debian:12	Package 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.

TR-24-0977 · Jul 17, 2024(Linux Kernel Güncellemesi)

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: 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-416 · Use After Free

CVSS vector

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

nvd-primary

Root cause

After a memory region is freed, another reference pointing to it is still used. By then, the same region may have been allocated for different data.

The bug in code

The whole CWE-416 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1free(dev->buf);
2/* ... another thread is still running ... */
3process(dev->buf);

Fixed

1lock(&dev->lock);
2free(dev->buf);
3dev->buf = NULL;
4unlock(&dev->lock);

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

Fix✗ → ✓Sep 28, 2026, 10:09 PM UTC

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

References

git.kernel.org/stable/c/1fb9dd3787495b4deb0efe66c58306b65691a48f

Show all references (7 more)

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

All records