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CVE-2021-34814

24
FAUCET Score

CVE-2021-34814 describes a Security Control Bypass vulnerability affecting Proofpoint Spam Engine versions prior to 8.12.0-2106240000. This vulnerability carries a high CVSS score of 7.5, indicating a severe impact, and can be exploited remotely without user interaction, leading to a denial of service. While the vulnerability is significant, there is currently no evidence of active exploitation, publicly available exploit code, or notable community discussion or media coverage surrounding it.

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.12.0-2104190000, < 8.12.0-2106240000CPE matchmatch criteria
cpe:2.3:a:proofpoint:spam_engine:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.01%
Probability of exploitation in next 30 days
EPSS Percentile
59.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0101 is in the 36th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

proofpoint.com / us/security/security-advisories
Vendor Advisory
proofpoint.com / us/security/security-advisories/pfpt-sa-2021-0010
Vendor Advisory