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CVE-2021-32299

23
FAUCET Score

CVE-2021-32299 is a stack-buffer-overflow vulnerability in the pbrt::ParamSet::ParamSet() function within the pbrt rendering system, affecting versions through 20200627. This high-severity vulnerability (CVSS 7.8) can lead to arbitrary code execution, requiring user interaction and local access for exploitation. While the potential impact is significant (confidentiality, integrity, and availability), there is currently no evidence of active exploitation, public exploit code, or community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 20200627CPE matchmatch criteria
cpe:2.3:a:pbrt_project:pbrt:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.05%
Probability of exploitation in next 30 days
EPSS Percentile
60.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0105 is in the 58th percentile among its peer group of 11,616 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

github.com / mmp/pbrt-v3/issues/296
ExploitIssue TrackingThird Party Advisory