NVD / CVE Program· CNA Linux

CVE-2022-49750: cpufreq: CPPC: Add u64 casts to avoid overflowing

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 7d596bbc66a52ff2c7a83d7e0ee840cb07e2a045, f5f94b9c8b805d87ff185caf9779c3a4d07819e3.

Low priority for now. Upgrade to Linux Linux 7d596bbc66a52ff2c7a83d7e0ee840cb07e2a045, f5f94b9c8b805d87ff185caf9779c3a4d07819e3 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: cpufreq: CPPC: Add u64 casts to avoid overflowing The fields of the _CPC object are unsigned 32-bits values. To avoid overflows while using _CPC's values, add 'u64' casts.

MediumCVSS 5.5 · v3.1—No exploit Fix available

BDU:2026-09311

Published: Mar 27, 2025
Updated: Jun 17, 2026
EPSS: 0.1% · 5th percentile
CWE: CWE-190

Report tools

JSON

Action score

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.

Is your version affected? Check it

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 kernelbefore 6.1.9
linux linux kernel6.2

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
- 5.19affected
- 740fcdc2c20ecf855b36b919d7fa1b872b5a7eae and later · before 7d596bbc66a52ff2c7a83d7e0ee840cb07e2a045affected · git
- 740fcdc2c20ecf855b36b919d7fa1b872b5a7eae and later · before f5f94b9c8b805d87ff185caf9779c3a4d07819e3affected · git
- before 5.19not affected · semver
- 6.1.9 and later · up to and including 6.1.*not affected · semver
- 6.2 and laternot affected · original_commit_for_fix

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 6.1.11-1	6.1.11-1

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-2022-49748Mar 27, 2025 · perf/x86/amd: fix potential integer overflow on shift of a int
22Monitor
← EarlierCVE-2022-49749Mar 27, 2025 · i2c: designware: use casting of u64 in clock multiplication to avoid overflow
22Monitor
Later →CVE-2022-49751Mar 27, 2025 · w1: fix WARNING after calling w1_process()
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 / package	Fixed version	Source
Linux Linux	7d596bbc66a52ff2c7a83d7e0ee840cb07e2a045	Vendor (CNA)
Linux Linux	f5f94b9c8b805d87ff185caf9779c3a4d07819e3	Vendor (CNA)
debian:linux	6.1.11-1 · 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.

CVE-2026-31633393 days apartrxrpc: Fix integer overflow in rxgk_verify_response()
39Monitor
CVE-2026-31649393 days apartnet: stmmac: fix integer underflow in chain mode
39Monitor
CVE-2026-31659393 days apartbatman-adv: reject oversized global TT response buffers
39Monitor
CVE-2026-43341407 days apartnet/ipv6: ioam6: prevent schema length wraparound in trace fill
39Monitor
CVE-2026-46039426 days apartrxgk: Fix potential integer overflow in length check
39Monitor
CVE-2026-46325439 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.

Attack patterns (CAPEC)

Forced Integer OverflowCAPEC-92likelihood: High · High

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:11 PM UTC

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

References

git.kernel.org/stable/c/7d596bbc66a52ff2c7a83d7e0ee840cb07e2a045

Show all references (1 more)

git.kernel.org/stable/c/f5f94b9c8b805d87ff185caf9779c3a4d07819e3

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

All records