What is CVE-2023-0476?

CVE-2023-0476 is a medium-severity vulnerability in Tenable Tenable.sc, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.5/10. Published 2023-01-26.

How severe is CVE-2023-0476?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Tenable Tenable.sc

CVE-2023-0476

A LDAP injection vulnerability exists in Tenable.sc due to improper validation of user-supplied input before returning it to users. An authenticated attacker could generate data in Active Directory using the application account through blind LDAP injection.

Published 2023-01-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.2th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Tenable Tenable.sc
Tenable.sc — versions Tenable.sc versions 5.23.1 and earlier

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

www.tenable.com/security/tns-2023-03 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2023-0476?: CVE-2023-0476 is a medium-severity vulnerability in Tenable Tenable.sc, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.5/10. Published 2023-01-26.
How severe is CVE-2023-0476?: Medium severity. CVSS v3 base score is 6.5 out of 10.