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CVE-2021-32998

24
FAUCET Score

CVE-2021-32998 is an out-of-bounds write vulnerability affecting FANUC R-30iA and R-30iB series controllers, potentially allowing remote arbitrary code execution. This high-severity vulnerability (CVSS 7.4) has a network attack vector and high attack complexity, with successful exploitation leading to high impact on integrity and availability, requiring a factory reset to restore functionality. Despite its severity, there is no evidence of active exploitation, no public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.20CPE matchmatch criteria
cpe:2.3:o:fanuc:r-30ia_firmware:7.20:*:*:*:*:*:*:*
7.30CPE matchmatch criteria
cpe:2.3:o:fanuc:r-30ia_firmware:7.30:*:*:*:*:*:*:*
7.40CPE matchmatch criteria
cpe:2.3:o:fanuc:r-30ia_firmware:7.40:*:*:*:*:*:*:*
7.43CPE matchmatch criteria
cpe:2.3:o:fanuc:r-30ia_firmware:7.43:*:*:*:*:*:*:*
7.50CPE matchmatch criteria
cpe:2.3:o:fanuc:r-30ia_firmware:7.50:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.4HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.18%
Probability of exploitation in next 30 days
EPSS Percentile
64.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0118 is in the 26th percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / uscert/ics/advisories/icsa-21-243-02
Third Party AdvisoryUS Government Resource