HOMEVULNERABILITIESCVE-2022-50518
HIGH

CVE-2022-50518

CWE-667Published: October 7, 2025· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

In the Linux kernel, the following vulnerability has been resolved:

parisc: Fix locking in pdc_iodc_print() firmware call

Utilize pdc_lock spinlock to protect parallel modifications of the

iodc_dbuf[] buffer, check length to prevent buffer overflow of

iodc_dbuf[], drop the iodc_retbuf[] buffer and fix some wrong

indentings.

NVD Source

Technical Analysis

CVE-2022-50518 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Linux1 product(s)
linux kernel
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://git.kernel.org/stable/c/04a603058e70b8b881bb7860b8bd649f931f2591
PATCHhttps://git.kernel.org/stable/c/553bc5890ed96a8d006224c3a4673c47fee0d12a
PATCHhttps://git.kernel.org/stable/c/7236aae5f81f3efbd93d0601e74fc05994bc2580

All References (3)

→
https://git.kernel.org/stable/c/04a603058e70b8b881bb7860b8bd649f931f2591Patch
→
https://git.kernel.org/stable/c/553bc5890ed96a8d006224c3a4673c47fee0d12aPatch
→
https://git.kernel.org/stable/c/7236aae5f81f3efbd93d0601e74fc05994bc2580Patch

Quick Facts

CVE IDCVE-2022-50518
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-667
CISA KEVNo
Affected1 vendor(s)
PublishedOct 7, 2025

Related CVEs (CWE-667)

CVE-2021-22530
9.9
CVE-2020-12658
9.8
CVE-2019-5886
9.8
CVE-2020-15674
8.8
CVE-2024-58087
8.1
CVE-2021-47242
7.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-50518 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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