CVE-2022-35222: HiCOS Citizen verification component has a stack-based buffer overflow vulnerability due to insufficient param

Routine

MEDIUM 6.8DOWNGRADEDOWNGRADEDOWNGRADE

CVE-2022-35222 is a medium-severity flaw (CVSS 6.8) affecting hicos natural person credential component client, hicos natural person credential component client, hicos natural person credential component client. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

HiCOS Citizen verification component has a stack-based buffer overflow vulnerability due to insufficient parameter length validation. An unauthenticated physical attacker can exploit this vulnerability to execute arbitrary code, manipulate system command or disrupt service.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-787
Published	2022-08-02
Last modified	2026-06-17

Publisher (CNA): TWCERT/CC · Vendor: hinet

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-08-02 16:15 UTCPublished CVE record published
2026-06-17 04:51 UTCUpdated Record last modified

hinet hicos natural person credential component client DOWNGRADE

Affected: 3.0.3.30306

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.3.30306

1. Check installed version

apt-cache policy hicos-natural-person-credential-component-client || rpm -q hicos-natural-person-credential-component-client || hicos-natural-person-credential-component-client --version

2. No fixed release: DOWNGRADE to a release before 3.0.3.30306 (Debian / Ubuntu)

apt-cache madison hicos-natural-person-credential-component-client sudo apt install hicos-natural-person-credential-component-client=<VERSION_BEFORE_3.0.3.30306> sudo apt-mark hold hicos-natural-person-credential-component-client

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list hicos-natural-person-credential-component-client sudo dnf downgrade hicos-natural-person-credential-component-client-<VERSION_BEFORE_3.0.3.30306> sudo dnf versionlock add hicos-natural-person-credential-component-client

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

hinet hicos natural person credential component client DOWNGRADE

Affected: 3.0.3.30404

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0.3.30404

1. Check installed version

apt-cache policy hicos-natural-person-credential-component-client || rpm -q hicos-natural-person-credential-component-client || hicos-natural-person-credential-component-client --version

2. No fixed release: DOWNGRADE to a release before 3.0.3.30404 (Debian / Ubuntu)

apt-cache madison hicos-natural-person-credential-component-client sudo apt install hicos-natural-person-credential-component-client=<VERSION_BEFORE_3.0.3.30404> sudo apt-mark hold hicos-natural-person-credential-component-client

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list hicos-natural-person-credential-component-client sudo dnf downgrade hicos-natural-person-credential-component-client-<VERSION_BEFORE_3.0.3.30404> sudo dnf versionlock add hicos-natural-person-credential-component-client

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

hinet hicos natural person credential component client DOWNGRADE

Affected: 3.1.0.00002

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.1.0.00002

1. Check installed version

apt-cache policy hicos-natural-person-credential-component-client || rpm -q hicos-natural-person-credential-component-client || hicos-natural-person-credential-component-client --version

2. No fixed release: DOWNGRADE to a release before 3.1.0.00002 (Debian / Ubuntu)

apt-cache madison hicos-natural-person-credential-component-client sudo apt install hicos-natural-person-credential-component-client=<VERSION_BEFORE_3.1.0.00002> sudo apt-mark hold hicos-natural-person-credential-component-client

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list hicos-natural-person-credential-component-client sudo dnf downgrade hicos-natural-person-credential-component-client-<VERSION_BEFORE_3.1.0.00002> sudo dnf versionlock add hicos-natural-person-credential-component-client

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-35222?

hicos natural person credential component client: downgrade or apply the listed mitigation; hicos natural person credential component client: downgrade or apply the listed mitigation; hicos natural person credential component client: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-35222 being exploited?

CVE-2022-35222 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-35222 affect?

CVE-2022-35222 affects hicos natural person credential component client, hicos natural person credential component client, hicos natural person credential component client. Severity is medium (CVSS 6.8). HiCOS Citizen verification component has a stack-based buffer overflow vulnerability due to insufficient parameter length validation. An unauthenticated physical attacker can exploit this vulnerability to execute arbitrary code, manipulate

How urgent is CVE-2022-35222?

Priority 32/100. No elevated risk signals yet.

Related CVEs

CVE-2022-32962 MEDIUM 6.8 DOWNGRADE DOWNGRADE HiCOS’ client-side citizen certificate component has a double free vulnerability
CVE-2022-32961 MEDIUM 6.8 DOWNGRADE DOWNGRADE HICOS’ client-side citizen digital certificate component has a stack-based buffer overflow vulnerability when
CVE-2022-32960 MEDIUM 6.8 DOWNGRADE DOWNGRADE HiCOS’ client-side citizen digital certificate component has a stack-based buffer overflow vulnerability when
CVE-2022-32959 MEDIUM 6.8 DOWNGRADE DOWNGRADE HiCOS’ client-side citizen digital certificate component has a stack-based buffer overflow vulnerability when

References

← Back to latest CVEs