Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-34388

24
FAUCET Score

CVE-2023-34388 is a critical Improper Authentication vulnerability affecting Schweitzer Engineering Laboratories SEL-451 devices and their firmware. This flaw allows a remote, unauthenticated attacker to potentially hijack sessions and bypass authentication, leading to complete compromise of confidentiality, integrity, and availability. With a CVSS score of 9.8, it presents a severe risk, though its EPSS score is low, suggesting a lower likelihood of exploitation in the wild. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= r315-v0, < r315-v4CPE matchmatch criteria
cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
>= r316-v0, < r316-v4CPE matchmatch criteria
cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
>= r317-v0, < r317-v4CPE matchmatch criteria
cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
>= r318-v0, < r318-v5CPE matchmatch criteria
cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*
>= r320-v0, < r320-v3CPE matchmatch criteria
cpe:2.3:o:selinc:sel-451_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.91%
Probability of exploitation in next 30 days
EPSS Percentile
56.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0091 is in the 41st percentile among its peer group of 36,862 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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

selinc.com / support/security-notifications/external-reports
Vendor Advisory
nozominetworks.com / blog
Third Party Advisory